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POWERMATE 433D
Service Manual
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Nec POWERMATE 433D, POWERMATE 4100M, POWERMATE 466D, POWERMATE 466M SERVICE MANUAL

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Page 1
PROPRIETARY NOTICE AND LIABILITY DISCLAIMER
The information disclosed in this document, including all designs and related materials, is the valuable property of NEC Corporation (NEC) and/or its licensors. NEC and/or its licen­sors, as appropriate, reserve all patent, copyright and other proprietary rights to this docu­ment, including all design, manufacturing, reproduction, use, and sales rights thereto, except to the extent said rights are expressly granted to others.
The NEC product(s) discussed in this document are warranted in accordance with the terms of the Warranty Statement accompanying each product. However, actual performance of each such product is dependent upon factors such as system configuration, customer data, and operator control. Since implementation by customers of each product may vary, the suitability of specific product configurations and applications must be determined by the customer and is not warranted by NEC.
To allow for design and specification improvements, the information in this document is subject to change at any time, without notice. Reproduction of this document or portions thereof without prior written approval of NEC is prohibited.
MultiSync and PowerMate are U.S. registered trademarks of NEC Technologies, Inc. FastFacts, NEC SVGA, PowerMate 433D PowerMate 466D, PowerMate 466M, and
PowerMate 4100M are U.S. trademarks of NEC Technologies, Inc. All other product, brand, or trade names used in this publication are the trademarks or registered
trademarks of their respective trademark owners.
First Printing — May 1994
Copyright 1994 Copyright 1994
NEC Technologies, Inc. NEC Corporation
1414 Massachusetts Avenue 7-1 Shiba 5-Chome, Minato-Ku
Boxborough, MA 01719 Tokyo 108-01, Japan
All Rights Reserved All Rights Reserved
Page 2
Contents
Page
Section 1 Technical Information
System Board.............................................................................................................1-3
Processor................................................................................................................1-5
Secondary Cache ....................................................................................................1-5
Flash ROM .............................................................................................................1-6
Power Management ................................................................................................1-7
I/O Addressing........................................................................................................1-8
System Memory......................................................................................................1-9
Interrupt Controller.................................................................................................1-9
Video Controller...................................................................................................1-10
Video Memory...................................................................................................... 1-12
ISA/VL-Bus Backboard............................................................................................1-14
ISA Bus................................................................................................................1-14
VL-Bus................................................................................................................. 1-14
Parallel Interface.......................................................................................................1-15
Serial Interface .........................................................................................................1-16
Indicator Panel..........................................................................................................1-16
v
Section 2 Setup and Operation
Minitower Setup.........................................................................................................2-5
Setup Utility...............................................................................................................2-8
How to Start Setup.....................................................................................................2-9
How to Use Setup......................................................................................................2-9
Menu Bar..............................................................................................................2-10
Legend Bar........................................................................................................... 2-11
Page 3
vi Contents
Field Help Window...............................................................................................2-11
General Help Window ........................................................................................... 2-12
Main Menu Options..............................................................................................2-12
IDE Adapters........................................................................................................ 2-13
Memory Shadow...................................................................................................2-14
Boot Sequence...................................................................................................... 2-15
Numlock...............................................................................................................2-15
Advanced Menu........................................................................................................2-16
Integrated Peripherals Menu..................................................................................2-16
Parity....................................................................................................................2-17
Large Disk Access Mode ......................................................................................2-18
Security Menu..........................................................................................................2-18
Power Menu.............................................................................................................2-20
Exit Menu.................................................................................................................2-21
Save Values & Exit...............................................................................................2-21
Discard Values & Exit...........................................................................................2-21
Get Default Values................................................................................................2-21
Load Previous Values ...........................................................................................2-22
Save Current Values ............................................................................................. 2-22
Section 3 Options
Desktop Cover Removal.............................................................................................3-2
Minitower Cover Removal .......................................................................................... 3-3
Expansion Board(s)....................................................................................................3-4
Desktop Expansion Board Installation ..................................................................... 3-5
Minitower Expansion Board Installation..................................................................3-7
Expansion Board Troubleshooting ..........................................................................3-8
System Board Options................................................................................................3-9
OverDrive Processor Installation...........................................................................3-10
OverDrive Processor Troubleshooting...................................................................3-12
SIMM Memory Installation...................................................................................3-13
SIMM Upgrade Path............................................................................................. 3-13
SIMM Installation.................................................................................................3-15
SIMM Upgrade Kit Troubleshooting.....................................................................3-16
Secondary Cache Installation.................................................................................3-17
Secondary Cache Kit Troubleshooting ..................................................................3-18
Video DRAM Module Installation.........................................................................3-19
Video DRAM Module Troubleshooting................................................................3-20
Video Cache RAM Chip Installation .....................................................................3-21
Video Cache RAM Chip Troubleshooting.............................................................3-22
Page 4
Contents vii
5 1/4-Inch Diskette Drive..........................................................................................3-23
5 1/4-Inch Diskette Drive Settings............................................................................3-23
Hard Disk Drives......................................................................................................3-24
Hard Disk Drive Settings.......................................................................................... 3-24
Desktop 3 1/2-inch Drive Bracket Removal..............................................................3-26
Desktop Blank Panel Removal..................................................................................3-27
Desktop 5 1/4-Inch Device Placement.......................................................................3-28
Desktop 5 1/4-Inch Diskette Drive Cabling...........................................................3-29
Desktop 5 1/4-Inch Hard Disk Drive Cabling........................................................3-30
Finishing Desktop 5 1/4-Inch Device Installation.......................................................3-31
Minitower Blank Panel Removal...............................................................................3-32
Minitower 5 1/4-Inch Device Placement....................................................................3-34
Minitower 5 1/4-Inch Diskette Drive Cabling........................................................3-35
Minitower 5 1/4-Inch Hard Disk Drive Cabling.....................................................3-36
Finishing Minitower 5 1/4-Inch Device Installation....................................................3-37
Hard Disk Drive Troubleshooting.............................................................................3-37
Connecting the Monitor............................................................................................3-40
Front Control Panel..................................................................................................3-42
Rear Control Panel ................................................................................................... 3-43
NEC SVGA Monitor Troubleshooting ...................................................................... 3-44
Section 4 Maintenance and Troubleshooting
System Unit................................................................................................................4-2
Keyboard....................................................................................................................4-3
Mouse........................................................................................................................4-4
Routine Checks ..........................................................................................................4-4
Error Messages...........................................................................................................4-5
Diagnosing and Solving Problems...............................................................................4-6
Diagnostic Output and Beep Codes...........................................................................4-10
Section 5 Desktop Repair
Top Cover Removal ...................................................................................................5-3
Expansion Board Removal .......................................................................................... 5-4
ISA/VL-BUS Backboard Removal .............................................................................5-7
Page 5
viii Contents
Front Panel Assembly Removal ................................................................................... 5-7
Power Button Cover Removal....................................................................................5-9
Speaker Assembly Removal...................................................................................... 5-10
SIMM Removal........................................................................................................5-11
3 1/2-inch Diskette and Hard Disk Drive Removal....................................................5-12
Optional 5 1/4-Inch Device Removal ........................................................................5-14
5 1/4-Inch Device Cage Removal..............................................................................5-15
Power Supply Removal.............................................................................................5-16
System Board Removal.............................................................................................5-17
Battery Removal.......................................................................................................5-19
Illustrated Parts Breakdown ...................................................................................... 5-20
Section 6 Minetower Repair
Top Cover Removal ...................................................................................................6-3
Expansion Board Removal .......................................................................................... 6-5
ISA/VL-BUS Backboard Removal .............................................................................6-6
Front Panel Assembly Removal ................................................................................... 6-7
Power Button Cover Removal....................................................................................6-8
Speaker Assembly Removal........................................................................................6-9
SIMM Removal........................................................................................................6-10
3 1/2-inch Diskette Drive Removal ........................................................................... 6-11
3 1/2-inch Hard Disk Drive Removal ........................................................................ 6-13
5 1/4-Inch Device Removal....................................................................................... 6-15
5 1/4-Inch Device Cage Removal..............................................................................6-16
Power Supply Removal.............................................................................................6-17
System Board Removal.............................................................................................6-18
Battery Removal.......................................................................................................6-20
Illustrated Parts Breakdown ...................................................................................... 6-21
Appendix A Connector Pin Assignments
Page 6
Contents ix
Appendix B Specifications
List of Figures
Page 7
x Contents
Page 8
Contents xi
List of Tables
Page 9
xii Contents
Page 10
Contents xiii
Page 11

Preface

This service and reference manual contains the technical information necessary to set up, maintain, troubleshoot, and repair the NEC PowerMate 433D, PowerMate 466D, Power­Mate 466M, and PowerMate 4100M computer systems. It also provides hardware and in­terface information for users who need an overview of the computer system design. The manual is written for NEC-trained customer engineers, system analysts, service center per­sonnel, and dealers.
The manual is organized as follows: Section 1, Technical Information, provides an overview of the computer features, hard-
ware design, interface ports and internal devices. Section 2, Setup and Operation, takes the user from unpacking to setup and operation.
Included is a description of the system configuration, system password, and the computer’s jumper settings, including the factory default settings.
xiii
Section 3, Options, provides the user with installation and troubleshooting information for each specific option.
Section 4, Maintenance and Troubleshooting, includes recommended maintenance in­formation and lists possible problem and solutions for computer.
Section 5, Desktop Repair, includes a list of NEC service information and telephone num­bers that provide access to the NEC Bulletin Board System (BBS), FastFacts, and Techni­cal Information Bulletins. Included are desktop disassembly and reassembly procedures along with an illustrated parts breakdown. NEC service and spare parts ordering informa­tion is also provided.
Section 6, Minitower Repair, includes a list of NEC service information and telephone numbers that provide access to the NEC Bulletin Board System (BBS), FastFacts, and Technical Information Bulletins. Included are minitower disassembly and reassembly proce­dures along with an illustrated parts breakdown. NEC service and spare parts ordering in­formation is also provided.
Appendix A, Connector Pin Assignments, provides a list of the system boards' internal connector pin assignments and a list of external pin assignments for the keyboard/mouse, serial port, parallel port, and video port.
Appendix B, Specifications, provides specifications for the system unit, power supply, diskette drives, hard disk drives, and optional NEC SVGA Monitor.
Page 12

Abbreviations

xv
A ampere AC alternating current AT advanced technology
(IBM PC)
BBS Bulletin Board System BCD binary-coded decimal BCU BIOS Customized Utility BIOS basic input/output system bit binary digit BUU BIOS Upgrade Utility bpi bits per inch bps bits per second C capacitance C centigrade Cache high-speed buffer storage CAM constantly addressable memory CAS column address strobe CD-ROM compact disk-ROM CG character generator CGA Color Graphics Adapter CGB Color Graphics Board CH channel clk clock cm centimeter CMOS complementary metal oxide
semiconductor
COM communication CONT contrast CPGA ceramic pin grid array CPU central processing unit DAC digital-to-analog converter DACK DMA acknowledge DC direct current DIP dual in-line package DLAB Divisor Latch Address bit DMA direct memory access
DMAC DMA controller DOS disk operating system DRAM dynamic RAM DTE data terminal equipment ECC error checking and correction EGA Enhanced Graphics Adapter EPROM erasable and programmable
ROM
EVGA Enhanced Video Graphics
Array
F Fahrenheit FCC Federal Communications
Commission
FG frame ground FM frequency modulation FRU field-replaceable unit GB gigabyte GND ground HEX hexadecimal HGA Hercules Graphics Adapter Hz hertz IC integrated circuit ID identification IDE intelligent device electronics IDTR interrupt descriptor table
register
in. inch INTA interrupt acknowledge IPB illustrated parts breakdown IRR Interrupt Request register ISA Industry Standard Architecture ISR In Service register I/O input/output IPC integrated peripheral controller ips inches per second IRQ interrupt request
Page 13
xvi Abbreviations
K kilo (1024) k kilo (1000) KB kilobyte kg kilogram kHz kilohertz lb pound LED light-emitting diode LSB least-significant bit LSI large-scale integration M mega mA milliamps max maximum MB megabyte MDA Monochrome Display Adapter MFM modified frequency modulation MHz megahertz mm millimeter
QFP quad flat pack RAM random-access memory RAMDAC RAM digital-to-analog RAS row address strobe RGB red green blue RGBI red green blue intensity ROM read-only memory rpm revolutions per minute R read RTC real-time clock R/W read/write S slave SG signal ground SIMM single inline memory module SVGA Super Video Graphics Array SW switch
TAC Technical Assistance Center ms millisecond MSB most-significant bit NASC National Authorized Service
Center
NC not connected NMI Non-maskable Interrupt ns nanosecond NSRC National Service Response
Center
PAL programmable array logic PC personal computer PCB printed circuit board PFP plastic flat package PIO parallel input/output pixel picture element PLCC plastic lead chip carrier PLL phase lock loop p-p peak-to-peak
TSC Technical Support Center
TTL transistor/transistor logic
tpi tracks per inch
V volt
Vdc volts, direct current
VESA video electronics standards
association
VGA Video Graphics Array
VRAM virtual RAM
W watt
W write
PPI programmable peripheral
interface
PROM programmable ROM
Page 14

Section 1

Technical Information
The PowerMate Series includes the PowerMate 433D, PowerMate 466D, Power­Mate 466M, and PowerMate 4100M. The information in this manual applies to all models except where indicated. Models differ primarily in the chassis, and microprocessor.
This section provides an overview of the PowerMate Series hardware. The basic hardware for the system includes a system unit, keyboard, and mouse. The “D” in the model name refers to a desktop style chassis and the “M” refers to the minitower style chassis.
External interface connectors are located in the rear of the system unit and are identified in Section 2, Setup and Operation. Jumper settings for all of the internal boards are also pro­vided in Section 2. Appendix A provides the system unit connector pin assignments and Appendix B provides specifications.
An overview of each of the two system unit styles are described in the following subsec­tions.
DESKTOP SYSTEM UNIT
The desktop chassis provides an enclosure for the system board, power supply, four storage device slots, and a five-expansion-slot ISA/VESA Local Bus (VL-Bus™) backboard. The storage device slots accommodate a 3 1/2-inch diskette drive, a 3 1/2-inch hard disk (1-inch height), and two 5 1/4-inch storage devices (1.6-inch height). The system ships with a 3 1/2-inch diskette drive and a hard disk drive leaving two 5 1/4-inch storage device slots available for optional devices. All desktop models share the system unit features shown in Figure Section 1-1.
5 1/4-Inch Accessible Slots (available)
Power Button
Power Lamp Hard Disk Drive
Busy Lamp
Reset Button
3 1/2-Inch Accessible Slot (contains 1.44-MB diskette drive)
Figure Section 1-1 PowerMate Desktop System Unit Features
3 1/2-Inch Internal Hard Disk Drive Slot
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1-2 Technical Information
MINITOWER SYSTEM UNIT
The minitower chassis provides an enclosure for the system board, power supply, five stor­age device slots, and five-expansion-slot ISA/VL-Bus backboard. The storage device slots accommodate a 3 1/2-inch diskette drive, a 3 1/2-inch hard disk (1-inch height), and three 5 1/4-inch storage devices (1.6-inch height). The system ships with a 3 1/2-inch diskette and a hard disk drive leaving three 5 1/4-inch storage device slots available for optional devices.
All minitower models share the system unit features shown in Figure Section 1-2.
Power Lamp
Hard Disk Drive Busy Lamp
Reset Button
Power Button
3 1/2-Inch Accessible slot (contains 1.44-MB diskette drive)
5 1/4-Inch Accessible slots
3 1/2-Inch Internal Slot (contains hard disk)
Figure Section 1-2 PowerMate Minitower System Unit Features
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Technical Information 1-3
System Board
The system boards are similar, differing only in the processor. The system board contains a Flash ROM which is upgradeable through the BIOS Update utility (see Section 2).
Key features of the system board are listed below.
n processor
Intel486SX™-33 – PowerMate 433D™Intel486DX2™-66 – PowerMate 466D™Intel486DX2-66 – PowerMate 466M™Intel486DX4™-100 – PowerMate 4100M™
n support for Intel OverDrive™ processor upgrades n 4 megabytes (MB) of random access memory (RAM) in the SX an DX2 systems
and 8 MB in the DX4 systems accepts 36-bit (32-bit U.S. and Canada), 70-nano second (ns) single-inline
memory modules (SIMMs)
expandable to 128 MB
n 8-kilobyte (KB) primary cache (16 KB in the Intel486DX4) n optional 256-KB secondary cache module n Wingine video graphics array (VGA) controller and 32-bit Local Bus
supports 640 x 480 with 16.8 million colors (24-bit true color), 800 x 600
with 64 K colors 1024 x 768 resolution with 256 colors, and 1280 x 1024 resolution with 16 colors
1-MB (two 256K x 16) video dynamic RAM (DRAM), expandable to 2 MB128-KB (256K x 4) standard video cache, expandable 256-KB
n two intelligent drive electronics (IDE) interface connectors
one fast local bus IDE connector (primary interface) used by the hard disk
drive to transfer data at the hard disk's optimum rate
one standard IDE connector (secondary interface) for additional IDE devices
(not used)
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1-4 Technical Information
n energy saving features: system switches to power save mode when idle for an es-
tablished amount of time
n 3 1/2-inch, 1.44-MB diskette drive n ISA/VL-Bus backboard providing four ISA and one ISA/VL-Bus expansion slots n external connectors providing an interface for the following external devices:
VGA-compatible monitorpersonal system/2 (PS/2®)-style mouse  PS/2-style keyboardenhanced capabilities port (ECP) for the parallel printertwo buffered serial ports
Table Section 1-1 lists the major chips on the system board. See Section 2, Setup and Op­eration, for a description of the system board's jumpers. See Appendix A, Connector Pin Assignments, for a list of the system board connectors.
Table Section 1-1 System Board Chips
Chip Description
486SX – PowerMate 433D 486DX2 – PowerMate 466D and
PowerMate 466M
486DX4 – PowerMate 4100M 28F010 128k x 8 Flash ROM VL82C483 System/cache/ISA Controller VL82C003 Interrupt, I/O controller VL82C114A Combination , I/O controller VL82C611 VL-Bus controller
64300 Wingine
33-MHz processor 33/66-MHz processor
33/100-MHz processor
VGA controller
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Technical Information 1-5
Processor
The PowerMate systems use the following processors.
n PowerMate 433D – uses the 486SX with a 33 MHz clock speed n PowerMate 466D and 466M – use the 486DX2 with a 66-MHz internal clock
speed and a 33-MHz external clock speed.
n PowerMate 4100M – use the 486DX4 with a 100-MHz internal clock speed and a
33-MHz external clock speed.
The processors are advanced 32-bit processors designed to optimize multitasking operating systems. The 32-bit registers and data paths support 32-bit addresses and data types.
The processor is installed in a 237-pin, zero-insertion-force (ZIF) processor socket. This socket allows the installation of the 486SX, DX2 and DX4 processors and the next genera­tion of Intel OverDrive processors based on the Pentium core (PGA type package). When upgrading processors they must operate with and external clock of 25 or 33 MHz.
The 486DX2 is exactly like previous 486DXs except that it runs twice as fast internally. When the interface bus portion of the DX2 accesses main memory, executes I/O instruc­tions, or accesses one of the other chips on the system board, the DX2 operates at 33 MHz. The DX2 works at 66 MHz when accessing its internal registers, refers to a memory loca­tion alPowerMate mapped into its internal cache, or performs a floating-point operation and CPU operations.
The DX4 runs three times as fast internally. When the interface portion accesses external registers it operates at 33 MHz and works at 100 MHz when accessing its internal registers.
Secondary Cache
The 8-KB primary cache (16-KB of primary cache in the DX4) is integrated into the proc­essor. The system board provides an 80-pin SIMM socket for an optional 256 KB of sec­ondary cache, external to the processor. Cache memory improves read performance by holding copies of code and data that are frequently requested from the system memory by the processor. Cache memory is not considered part of the possible 128 MB of total mem­ory capacity.
The cache is connected directly to the processor address bus and uses physical addresses. A bus feature known as burst enables fast cache fills. Memory areas (pages) can be designated as cacheable or non-cacheable by software. The cache can also be enabled and disabled by software.
The write strategy of the cache (primary and secondary) is write-through. If the write is a cache hit, an external bus cycle is generated and information is written to the cache. Any area of memory can be cached in the system. Non-cacheable portions of memory are de­fined by software. The cache can be cleared by software instructions.
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1-6 Technical Information
Flash ROM
Machine language programs are stored in a 28F010 Flash ROM known as the system's ROM BIOS. The system BIOS and video BIOS are contained in the ROM. The Flash ROM is 128 KB, which consists of 64 KB of system BIOS, and 32 KB of video BIOS.
The Flash ROM allows the BIOS to be upgraded with the BIOS Update utility without re­moving the ROM (see Section 2, Setup and Configuration). The BIOS can only be repro­grammed by powering on the system with the BIOS Update utility diskette in Drive A.
The BIOS programs execute the Power-On Self-Test, initialize processor controllers, and interact with the display, diskette drives, hard disks, communication devices, and peripher­als. The system BIOS also contains the Setup program and provides VGA controller sup­port. The hardware setup default copies the ROM BIOS into RAM (shadowing) for maximum performance.
System BIOS is located in the upper portion of the Flash ROM and video BIOS in the lower portion. System BIOS is located between F0000h-FFFFFh and supports shadowing and shadowed memory. System BIOS is write protected and automatically enabled.
Video BIOS is located between C0000h and C7FFFh. If the internal video is disabled, this range is mapped to ISA. The system memory map in shown in Table Section 1-2.
Table Section 1-2 System Memory Map
Memory Space Size Function
000000-07FFFF 512 KB Reserved for system base memory 080000-09FFFF 128 KB Mapped to either system base memory or ISA bus* 0A0000-0BFFFF 128 KB Mapped to either on-board video memory or ISA video memory 0C0000-0C7FFF 32 KB Mapped to either on-board video BIOS or ISA video BIOS 0C8000-0EFFFF 160 KB Mapped to ISA bus 0F0000-0FFFFF 64 KB Reserved for system BIOS 100000-FDFFFF 14.9 MB Reserved for Extended and/or Expanded system memory FE0000-FFFFFF 128 KB Mapped to ISA bus 1000000- On-Board 14.9 MB Reserved for Extended and/or Expanded system memory
*Always non-cachable.
Page 20
Technical Information 1-7
Flash ROM supports the reprogramming of the system and built-in video BIOS. Software controls this feature via port 94h. Flash ROM programming writes to location 0F0000h­0FFFFFh. This range allows access to 64 KB of the 128 KB ROM. To write to the rest of the ROM, bit 3 of port 94h must be set. Again, writing to 0F0000h-0FFFFFh allows the rest of the ROM to be programmed. (Setting bit 3 on port 94h maps the 0F0000h to 0E0000h range.)
Power Management
Each computer system incorporates power management features that lowers power con­sumption when there is no activity detected from the keyboard, mouse, diskette drive, CD­ROM reader, or hard disk drive after a pre-defined period of time. As soon as activity is detected the system resumes where it left off.
When Power Management is enabled the computer automatically activates power-saving features and enters a sleep mode whenever inactivity is sensed. The computer's power­saving functions are as follows.
n Reduces the CPU clock speed
The CPU clock speed is changed from 33 MHz to 8 MHz (16 MHz in the PowerMate 4100M) to put the computer in sleep mode. The cache and video clocks are changed at the same time.
n Blanks out the monitor
Puts the video controller into sleep mode. The vertical sync clock and blank sig­nals to the monitor are disabled.
n Forces the IDE devices into stand-by mode
A suspend command is sent to the IDE devices which put the devices into a stand-by mode.
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1-8 Technical Information
I/O Addressing
The processor communicates with I/O devices by I/O mapping. The hexadecimal (hex) ad­dresses of I/O devices are listed in Table Section 1-3.
Table Section 1-3 I/O Address Map
Address (Hex) I/O Device Name
000-01F DMA controller 1 (channel 0-3) 020-03F Interrupt controller 040-05F Timer 060-063 PPI (Programmable Peripheral Interface) keyboard, equipment switches,
timer 060-06F Keyboard controller 070-07F Real-time clock, CMOS memory, NMI mask
080 Manufacturer's diagnostic checkpoint
081-09F DMA page register 0A0-0AF NMI (non-maskable interrupt) mask 092 PS/2 alternate Fast A20 Gate, Hot Reset 094 Extended system port (NEC-specific hardware setup) 095 Extended system port (NEC-specific hardware setup) 097 Extended system port (NEC-specific hardware setup) 0A0-0BF Interrupt controller 2 0C0-0DF DMA controller 2 (channel 4-7) 0E0-0EF Reserved 170-177 2nd hard disk 1F0-1F7 1st hard disk 1F9-1FF Reserved 200-207 Game I/O adapter (not available) 278-27F 2nd parallel port (3rd with DMA) 2F8-2FF 2nd asynchronous communications port 370-377 Diskette controller 2 378-37F 1st parallel port (2nd with DMA)
3A0-3AF Primary bisynchronous communications port 3B0-3DF Video Graphics Array (VGA) 3B0-3BF Monochrome display adapter/printer 1
3C0-3CF Enhanced Graphics Adapter (EGA) 1
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Technical Information 1-9
Table Section 1-3 I/O Address Map
Address (Hex) I/O Device Name
3D0-3DF Color/Graphics Adapter (CGA and EGA)
3F0-3F7 Diskette Controller 3F8-3FF Asynchronous Adapter Port 1
System Memory
The PowerMate 433D, 466D, and 466M system boards come standard with 4 MB of RAM. The PowerMate 4100M system board comes standard with 8 MB of RAM. The first mega­byte includes the standard 640 KB of base memory. The remaining memory is extended memory. Four SIMM sockets are integrated on the system board. In the 433D, 466D, and 466M, one socket contains a 4-MB SIMM and three sockets are empty for installing up to three additional SIMMs. The 4100M contains two 4-MB SIMMs and two sockets are empty for installing additional SIMMs. The maximum possible memory is 128 MB.
The SIMM memory sockets accept 4-, 8-, 16-, or 32-MB SIMMs. When the standard 4-MB SIMM is removed (8-MB in the 4100M), four 32-MB SIMMs may be installed for a total of 128 MB. High-speed RAM is 32 bits wide (no parity bits). SIMMs are 1 MB x 32 bit (4 MB), 4 MB x 32 bit (16 MB), and 8 MB x 32 bit (32 MB). There are no switches or jumpers to set when SIMMs are added.
CAUTION: SIMMs must match the tin metal plating used on the system board SIMM sockets. When adding SIMMs, use tin-plated SIMMs.
SIMMs install directly on the system board. Different size SIMMs may be intermixed. Each SIMM is inserted into a socket or bank. The standard 4 MB of memory is installed in bank 0 in the PowerMate 433D, 466D, and 466M. The PowerMate 4100M has two 4 MB SIMMs installed in banks 0 and 1. The system board's four SIMM sockets are assigned as banks 0 through 3. See Section 3, Options, for installation instructions and SIMM memory configurations.
Interrupt Controller
The interrupt controller operates as an interrupt manager for the entire AT system environ­ment. The controller accepts requests from peripherals, issues interrupt requests to the processor, resolves interrupt priorities, and provides vectors for the processor to determine which interrupt routine to execute. The interrupt controller has priority assignment modes that can be reconfigured at any time during system operations.
Page 23
1-10 Technical Information
The interrupt levels are described in Table Section 1-4. Interrupt-level assignments 0 through 15 are in order of decreasing priority. See Section 2, Setup and Configuration, for information on changing the interrupts using Setup and jumpers.
Table Section 1-4 Interrupt Level Assignments
Interrupt Priority Interrupt Device
IRQ00 Counter/Timer IRQ01 Keyboard IRQ02 Cascade (INT output from slave) IRQ03 COM2* IRQ04 COM1* IRQ05 Available IRQ06 Diskette Drive Controller* IRQ07 Parallel Port 1* IRQ08 Real-time clock IRQ09 Available IRQ10 Available IRQ11 Available IRQ12 PS/2 mouse* IRQ13 Coprocessor IRQ14 Primary IDE (fast) IRQ15 Secondary IDE (standard)
*Industry standard locations
Video Controller
The 64300 Wingine DGX video controller with Local Bus video combines powerful ele­ments aimed at addressing the requirements of personal computer designs. State of the art techniques have been added for optimizing performance in computer graphic intensive ap­plications and graphical user interfaces (GUI). A variety of industry standard 32-bit local bus interfaces are integrated on chip, including VESA Local Bus (VL-Bus). The key is that local bus interfaces are 32-bit wide.
Included in the video controller are cost saving features such as an integrated palette DAC and clock synthesizer along with integrated support for multiple bus interfaces and flexible DRAM-based display memory configurations.
Page 24
Technical Information 1-11
The 64300 video controller supports XRAM Accelerator Cache, power management, flash ROM, and a linearly mapped display.
The XRAM Accelerator Cache is a breakthrough in performance technology. By using one standard 256K x 4 fast page DRAM, a proprietary algorithm implemented in the 64300 sig­nificantly increases graphics system performance. Performance never before achieved in standard dram-based graphics architectures.
When using the 64300 Wingine DGX, a system host CPU’s performance is enhanced and a significant improvement will be observed in the display. Other DRAM-based graphics accel­erators gain some degree of performance which, while measurable, is not as significant nor as noticeable on the display.
The TrueColor RAMDAC provides 24-bit true color. The integrated dual clock synthesizer allows full programmability of MCLK (memory clock) and PCLK (pixel clock). The inte­grated clock synthesizer supports frequencies from 390 kHz to 120 MHz. The 64300 sup­ports up to 2 MB of display memory. The video memory is 256K x 16 Fast Page Mode DRAM. Display memory is linearly mapped up to 2 MB.
The VESA display power management signaling (DPMS) standard is supported, enabling stand-by, suspend, and off power saving modes. This includes the ability to independently stop HSYNC of VSYNC and hold them at a static level. Additionally the RAMDAC may be powered-down and the clock frequencies lowered for further power savings. Color Key and video overlay are supported.
Page 25
1-12 Technical Information
Video Memory
The 1 MB of on-board video DRAM is expandable to 2 MB and provides graphic resolu­tions of or 640 x 480 with 16.8 million colors, 800 x 600 with 64K colors, 1024 x 768 with 256 colors, or 1280 x 1024 with 16 colors. Table Section 1-5 and Table Section 1-6 pro­vide the different display modes for the video controller.
Table Section 1-5 Text Modes
Mode (Hex)
1
00
2
00
3
00
1
01
2
01
3
01
1
02
2
02
3
02
1
03
2
03
3
03
4
07
3
07
5
60
5
24
Colors
Column/
Rows
Buffer
Resolution
Video Clock (MHz)
Horiz Sync (kHz)
Vert Sync (Hz)
16 (grey) 40 x 25 B8000 320 x 200 28.2 31.7 70 16 (grey) 40 x 25 B8000 320 x 350 28.3 31.7 70 16 40 x 25 B8000 360 x 400 28.2 31.7 70 16 40 x 25 B8000 320 x 200 28.2 31.7 70 16 40 x 25 B8000 320 x 350 28.2 31.7 70 16 40 x 25 B8000 360 x 400 28.2 31.7 70 16(grey) 80 x 25 B8000 640 x 200 28.2 31.7 70 16(grey) 80 x 25 B8000 640 x 350 28.2 31.7 70 16 80 x 25 B8000 720 x 400 28.2 31.7 70 16 80 x 25 B8000 640 x 200 28.2 31.7 70 16 80 x 25 B8000 640 x 350 28.2 31.7 70 16 80 x 25 B8000 720 x 400 28.2 31.7 70 mono 80 x 25 B8000 720 x 350 28.2 31.5 70 mono 80 x 25 B8000 720 x 400 28.2 31.5 70 16 132 x 25 B8000 1056 x 400 40.0 30.5 67.5 16 132 x 30 B8000 1056 x 400 40.0 30.5 67.5
1CGA-style text mode with 8x8 character size and 200 lines vertical resolution.
2
EGA-style text mode with 8x14 and 9x14 character sizes and 350 lines vertical resolution.
3
VGA-compatible text mode with 9x16 character size and 400 lines vertical resolution.
4
MDA- style text mode with 9x14 character sizes and 350 lines vertical resolution.
5
Enhanced VGA mode.
Page 26
Technical Information 1-13
Table Section 1-6 Graphic Modes
Mode (Hex)
1
04
1
05
1
06
1
0D
1
0E
2
0F
2
10
2
11
2
12
2
13
2
20
2
22
2,3
24
2
30
2
32
2,3
34
2,3
38
2
40
2
41
2,
42
2,
43
2,3
44
2,3
45
2
50
2
6A
2
70
2,3
75
3
76
2
78
2
79
Colors
Column /Rows
Buffer
Resolution
Video Clock (MHz)
Horiz Sync (kHz)
Vert Sync (Hz)
4 40 x 25 B8000 320 x 200 25.2 31.5 70 4 40 x 25 B8000 320 x 200 25.2 31.5 70 2 80 x 25 B8000 640 x 200 25.2 31.5 70 16 40 x 25 A0000 320 x 200 25.2 31.5 70 16 80 x 25 A0000 640 x 200 25.2 31.5 70 mono 80 x 25 A0000 640 x 350 25.2 31.5 70 16 80 x 25 A0000 640 x 350 25.2 31.5 70 2 80 x 30 A0000 640 x 480 25.2 31.5 70 16 80 x 30 A0000 640 x 480 25.2 31.5 60 256 40 x 25 A0000 320 x 200 25.2 31.5 70 16 80 x 30 B8000 640 x 480 40.0 30.5 60 16 100 x 37 A0000 800 x 600 25.2 31.5 60 16 128 x 48 A0000 1024 x 768 32.6 31.5 73 256 80 x 30 A0000 640 x 480 36.0 35.5 56 256 100 x 37 A0000 800 x 600 40.0 38.0 60 256 128 x 48 A0000 1024 x 768 50.4 48.4 73 256 80 x 25 A0000 1280 x 1024 25.2 31.5 70 32k 80 x 30 A0000 640 x 480 25.2 31.5 60 64k 80 x 30 A0000 640 x 480 32.6 31.5 73 32k 100 x 37 A0000 800 x 600 25.2 31.5 70 64k 100 x 37 A0000 800 x 600 36.0 35.5 56 32k 128 x 48 A0000 1024 x 768 40.0 38.0 60 64k 128 x 48 A0000 1024 x 768 50.4 48.4 73 16M 80 x 30 A0000 640 x 480 44.9 35.5 87 16 100 x 37 A0000 800 x 600 65.0 49.0 61 16 100 x 37 A0000 800 x 600 72.0 56.6 70 16 128 x 48 A0000 1024 x 768 44.9 35.5 87 16 160 x 64 A0000 1280 x 1024 72.0 56.6 70 256 80 x 25 A0000 640 x 400 72.0 56.6 70 256 80 x 30 A0000 640 x480 44.9 35.5 87
Page 27
1-14 Technical Information
Table Section 1-6 Graphic Modes
Mode (Hex)
2
7C
2,3
7E
18x8 charactor size
2
8x16 charactor size
3
Interlaced
Colors
256 100 x 37 A0000 800 x 600 72.0 56.6 70 256 128 x 48 A0000 1024 x 768 80.0 48.1 87
Column /Rows
Buffer
Resolution
Video Clock (MHz)
Horiz Sync (kHz)
Vert Sync (Hz)
ISA/VL-Bus Backboard
The ISA/VL-Bus backboard provides four ISA expansion slots and one Video Electronics Standards Association (VESA) Local Bus (VL-Bus) slots. The backboard is plugged into two bus connectors on the system board.
ISA Bus
The system board uses the ISA bus for transferring data between the processor and I/O pe­ripherals and expansion boards. The ISA bus supports 8- and 16-bit data transfers and typi­cally operates at 8.33 MHz. A connector is provided on the system board for attaching the ISA/VL-Bus backboard.
VL-Bus
The VL-Bus provides an interface between the system's local bus and a VL-Bus option board (graphics adapters, disk controllers, network cards, and so on). The VL-Bus uses a standard 32-bit VESA connector and conforms with the VESA 1.1 local bus specification, providing a set of standards that ensure compatible VL-Bus option boards. The boards op­erate at the system clock speed (33 MHz) with 0 wait states. The VL-Bus slot can support bus masters simultaneously.
Option boards on the VL-Bus can send and receive data much faster on the local bus than on the ISA bus. The VL-Bus runs at the system's clock speed (33 MHz) instead of the stan­dard ISA bus speed (8 MHz). Also, the Local Bus provides a wider bus width (32 bits) than the standard ISA bus width (16 bits).
The VL-Bus slot is used in conjunction with an ISA bus slot. This feature allows a VL-Bus option board full access to the ISA bus. For example, the VL-Bus option board may utilize the parallel port via the ISA bus, or use the ISA bus REFRESH signal. Use of the ISA bus is optional, as the VL-Bus has all signals needed to fully support a VL-Bus option board.
Page 28
Technical Information 1-15
Parallel Interface
The system has a 25-pin parallel port on the system board. Specifications for this port con­form to the IBM-PC standards.
The BIOS has automatic ISA printer port sensing. If the BIOS detects an ISA printer port mapped to the same address, the built-in printer port is disabled. The BIOS also sets the first parallel interface port it finds as LPT1 and the second port it finds as LPT2. The inter­rupt is selected to either IRQ5 or IRQ7 via the Setup and jumper settings.
Interrupt levels for the parallel port are given in Table Section 1-7. Software selectable base addresses are 3BCh, 378h, and 278h.
Parallel interface signals are output through the system board's 25-pin, D-subconnector. The connector is located at the rear of the system unit. Pin locations for the parallel interface connector are shown in Appendix A.
NOTE: Any interrupts used for the built-in par- allel port is not available for ISA parallel ports.
Table Section 1-7 Parallel Port Addressing and Interrupts
Starting I/O Address Interrupt Level Port
378 IRQ05 LPT1 278 IRQ05 LPT1 or LPT2 3BC IRQ05 LPT1 or LPT2 378* IRQ07 LPT1 278 IRQ07 LPT1 or LPT2 3BC IRQ07 LPT1 or LPT2
*Default for parallel port
Page 29
1-16 Technical Information
Serial Interface
The system has two standard serial ports (COM1 and COM2). The serial ports support the standard RS-232C interface (16550 compatible). I/O addresses and interrupt levels for the two channels are given in Table Section 1-8. The interrupt is selectable via Setup to either IRQ3 or IRQ4. Software selectable base addresses are 3F8h, 2F8h, 3E8h, and 2E8h. Serial interface signals are output through the system board's 9-pin, D-subconnector. The con­nectors are located at the rear of the system unit. Pin locations for the serial interface con­nector are shown in Appendix A
NOTE: Any interrupts used for the built-in serial ports are not available for ISA parallel ports.
Table Section 1-8 Serial Port Addressing and Interrupts
Starting I/O Address Interrupt Level Port
3F8 IRQ04 COM1 2F8* IRQ03 COM2 3E8 IRQ04 COM3 2E8 IRQ03 COM4
*Default for serial port
Serial interface specifications include:
n Baud rate up to 19.2 KB per second n Word length - 5, 6, 7, or 8 bits n Stop bit - 1, 1.5, or 2 bits n Start bit - 1 bit n Parity bit - 1 bit (odd parity or even parity).
Indicator Panel
The indicator panel is attached to the front panel and contains the power lamp, hard disk drive busy lamp, and reset button. The indicator panel attaches to the system board using connector P5 (reset connector), P7 (hard disk drive busy lamp connector), and P15 (power lamp connector).
Page 30
Technical Information 1-17
POWER SUPPLY
The power supply is mounted inside the system unit. It supplies power to the system board, option boards, diskette drives, hard disks, keyboard, and mouse. Two connectors connect the power supply to the system board. A fan inside the power supply provides proper ven­tilation for the system. The power supply in the desktop supplies 145W of power. The minitower power supply provides 200W. Power requirements and specifications for both power supplies are provided in Appendix C.
DISKETTE DRIVE
Up to two diskette drives are supported in the system. The drives are connected by a single ribbon cable with two drive connectors. The system refers to the diskette drives as A and B. Drive A is for the first drive, B is for a second optional diskette drive. The diskette drive cable plugs directly into the system board. Typically both diskette drive are terminated. See Section 3, Options, for installing an optional 5 1/4-inch diskette drive.
Specifications for the diskette drives are provided in Appendix B, Specifications.
HARD DISK DRIVE
The system provides IDE interface connectors on the system board. The system board sup­ports up to two IDE devices on the standard connector and two IDE devices on the fast lo­cal bus IDE connector. The system unit provides one storage slot for a 3 1/2-inch hard disk (1-inch height), and one available storage slots for a optional 5 1/4-inch device (1.6-inch height). See Section 3, Options, for installing an optional hard disk drive.
Specifications for the diskette drives are provided in Appendix B, Specifications.
KEYBOARD
The PS/2-style keyboard is standard equipment for the system. The keyboard provides a numeric keypad, separate cursor control keys, and 12 function keys, capable of up to 48 functions. Status lamps on the keyboard indicate: Num (Numeric) Lock, Caps (Capital) Lock, and Scroll Lock key status. The keyboard's six-pin connector is plugged into the rear of the base unit. The PS/2-style keyboard connector pin assignments are given in Appen­dix A, Connector Pin Assignments.
Page 31

Section 2

Setup and Operation
This section provides information on hardware setup for PowerMate Series computers. Setup includes unpacking, cabling, and powering up the system. It also includes configuring the system with the system setup programs. Section 3 provides information for installing options.
UNPACKING AND REPACKING
Find an area away from devices that generate magnetic fields (electric motors, transformers, etc.). Place the carton on a sturdy surface, and carefully unpack the system. The carton contents include the system unit, keyboard, mouse, power cord, user documentation, and system recovery diskette.
Repack the system using the original shipping carton and packing material. Part numbers for replacement shipping cartons and packing material are available at the end of Sections 5 and 6.
SETUP
Connect the system components according to the following two subsections.
n Desktop Configuration – for setting up desktop system units. n Minitower Configuration – for setting up minitower system units.
Page 32
2-2 Setup and Operation
Desktop Setup
Set up the desktop systems by making the following connections. (See the following sub­section, Minitower Setup, if setting up a minitower computer).
1. At the rear of the system, set the voltage selector switch to 115V or 230V and in-
sert the power cord into the system power socket (see Figure 2-1).
CAUTION: The correct AC input voltage must be properly set. Select the appropriate voltage with the voltage selector switch located at the rear of the system.
Voltage Selector Switch
System Power Socket
Figure Section 2-1 Desktop Voltage Selector Switch
Page 33
Setup and Operation 2-3
2. Connect the keyboard and mouse cables to the back of the system unit (see
Figure 2-2).
3. Connect the, monitor and any other peripherals to the rear panel (see Figure 2-2).
Detailed monitor connections a given in Sections 3, Options.
15-Pin VGA Monitor Connector
Parallel Printer Port
Serial
Port 2 Serial Port 1
Mouse Port
Keyboard Port
Figure Section 2-2 Desktop Peripheral Connections
4. Press the power button to power-on the system (see Figure 2-4). The user lamps
and reset button are also identified in the figure.
Power Button
Power Lamp
Hard Disk Drive Busy Lamp
Reset Button
Figure Section 2-3 Desktop Lamps, Reset Button, and Power Button
Page 34
2-4 Setup and Operation
The system has a built-in checking program that automatically tests the components at power-on. One beep indicates that the system has successfully completed its power-on test.
If there is a problem, a series of beeps may occur. If this happens repeatedly after powering on the system, power off the system and see Section 4 for troubleshooting.
NOTE: If the system displays a message indicating that system settings have changed, run Setup (see “System Configuration” later in this section).
If a problem occurs, and is not indicated by beeps, check the following items, then turn to Section 4 for troubleshooting. Check that:
n the power switch for the system unit and monitor are on. n all cables and power cords are tightly connected. n the electrical outlet is working. n the monitor's brightness and contrast are adjusted properly. n all options are properly installed (see Section 3 for option installation).
Page 35
Setup and Operation 2-5
Switch
Minitower Setup
Set up the minitower systems by making the following connections. (See the preceding sub­section, Desktop Setup, if setting up a desktop computer).
1. At the rear of the system, set the voltage selector switch to 115V or 230V and in-
sert the power cord into the power socket (see Figure 2-5).
CAUTION: The correct AC input voltage must be properly set. Select the appropriate voltage with the voltage selector switch located at the rear of the system.
System Power Socket
Voltage Selector
Figure Section 2-4 Minitower Voltage Selector Switch
Page 36
2-6 Setup and Operation
2. Connect the keyboard and mouse cables to the back of the system unit (see
Figure 2-6).
3. Connect the monitor and any other peripherals to the rear panel (see Figure 2-6).
Detailed monitor connections a given in Sections 3, Options.
Expansion Slot Covers
15-Pin VGA Monitor Connector
Parallel Printer Port
Serial Port 2
Serial Port 1
Keyboard Port
Mouse Port
Figure Section 2-5 Minitower Peripheral Connections
4. Press the power button to power-on the system (see Figure 2-8). The user lamps
and reset button are also identified in the figure.
Hard Disk Drive Busy Lamp
Power Lamp
Power Button
Reset Button
Figure Section 2-6 Minitower Indicators, Reset Button, and Power Button
Page 37
Setup and Operation 2-7
The system has a built-in checking program that automatically tests the components at power-on. One beep indicates that the system has successfully completed its power-on test.
If there is a problem, a series of beeps may occur. If this happens repeatedly after powering on the system, power off the system and see Section 4 for troubleshooting.
NOTE: If the system displays a message indicating that system settings have changed, run Setup (see “System Configuration” later in this section).
If a problem occurs, and is not indicated by beeps, check the following items, then turn to Section 4 for troubleshooting. Check that:
n the power switch for the system unit and monitor are on. n all cables and power cords are tightly connected. n the electrical outlet is working. n the monitor's brightness and contrast are adjusted properly. n all options are properly installed (see Section 3 for option installation).
Page 38
2-8 Setup and Operation
SYSTEM CONFIGURATION
This subsection describes the Setup utility program that allows the system configuration information to be viewed and changed.
NOTE: The system ships from the factory with the correct system parameters for the configura­tion. Unless adding optional hardware, Setup does not need to be run.
However, run Setup to set features that custom­ize the system, such as security features.
System configuration information is stored in nonvolatile memory. Nonvolatile memory in the system is a complementary metal-oxide semiconductor (CMOS) chip backed up by a battery on the system board. The battery supplies continuous power to the CMOS memory and maintains configuration information when system power is off.
Setup Utility
The Setup utility is used to view and set system parameters. Use the Setup utility program:
n to set the time and date. n to update or check system parameters when adding or removing expansion op-
tions.
n to correct a hardware discrepancy when the Power-On-Self-Test (POST) displays
an error message and a prompts appears to run Setup.
n to check the installation of optional memory by comparing the amount memory
installed with the amount of memory displayed by Setup.
n to change certain system operating parameters. n to customize the system with security features such as passwords and I/O control
functions.
n to set system parameters in the event that the system battery needs to be replaced.
Page 39
How to Start Setup
To start the Setup utility, follow these steps:
1. Turn on or reboot the system. Setup displays the following message:
Press <F2> to enter SETUP
2. Press F2. Setup’s Main Menu window appears similar to the following screen.
NOTE: The screen shown is typical of the sys- tem. The actual items on the Main Menu depend upon the hardware installed in the system.
Setup and Operation 2-9
How to Use Setup
The Setup utility has a Main Menu window and five top-level menus with submenus. The Main Menu window contains the following areas:
n A title line — the top line of the Main Menu. This line displays the Setup utility
name and copyright message.
n The menu bar — the line under the Setup title line. The menu bar contains five
top-level menus for setting system parameters.
n A Main Menu summary window — the center area on the left side of the screen.
This area provides a summary of Main Menu Setup parameters. Main Menu parameters can be set directly from this window or from the Main menu option in the legend bar.
n The Field Help window or Item Specific Help — the area on the right side of the
screen. This help area provides help information for the Setup option currently selected.
Page 40
2-10 Setup and Operation
n The legend bar — the area at the bottom of the screen. The legend bar provides a
summary of command keys for using Setup.
n The General Help window — a window that appears any time during Setup after
pressing F2 or Alt H . This help window provides two pages of general informa­tion about using Setup.
The following sections describe how to use the Main Menu window to set system parameters.
Menu Bar
The menu bar at the top of the Main Menu window lists these menus:
n Main — Use this menu for basic system configuration. For example, select
“Main” to set the system time, system date, diskette drives, and video parameters. Use this menu to check memory parameters.
n Advanced — Use this menu to set serial port and printer port addresses and inter-
rupts, to enable/disable the system’s diskette drive controller and dual-IDE con­trollers.
The Advanced menu also provides menu items for setting parity and for setting parameters for large disks (for example, to use large disks with Windows NT).
Some of the Advanced features are accessible only with a Supervisor password.
n Security — Use this menu to set User and Supervisor Passwords and the Backup
and Virus-check reminders.
n Power — Use this menu to configure Power-Management features. n Exit — Exits the current menu.
To select an option from the menu bar, use the left and right ←← →→ arrow keys. See “Exiting Setup” in this chapter for a description on exiting the Main Menu.
Page 41
Setup and Operation 2-11
Legend Bar
Use the keys listed in the legend bar on the bottom of the Setup menu to make the selec­tions or exit the current menu. The following table describes the legend keys and their alter­nates.
Table Section 2-1 Setup Key Functions
Key Function
F1 or Alt-H Displays General Help window (described later in this chapter). Esc Exits the menu. ← or → arrow keys ↑ or ↓ arrow keys Tab or Shift-Tab Cycles cursor up and down. Home or End Moves cursor to top or bottom of window. Page Up or Page Down Moves cursor to next or previous page. F5 or - Selects the Previous Value for the field. F6 or + or Space Selects the Next Value for the field. F9 Loads the Default Configuration values for this menu. F10 Loads the Previous Configuration values for this menu.
Enter Alt-R Refreshes screen
n Selecting a Menu Item
Selects a different menu. Moves cursor up and down.
Executes Command or Selects submenu.
To select a menu item, use the arrow keys to move the cursor to the desired field. Then use the value keys (F5, –, F6, +, or space bar) to cycle through the value for that field. The Save Values command in the Exit Menu saves the values currently displayed in all the menus.
n Displaying a Submenu
To display a submenu, use the arrow keys to move the cursor to the desired sub­menu. Then press Enter. A pointer (a right-pointing triangle) marks all selectable submenus.
Field Help Window
The Field Help window or Item Specific Help window on the right side of each menu dis­plays the help text for the currently selected Setup option. It updates as the cursor is moved to each new field.
Page 42
2-12 Setup and Operation
General Help Window
Pressing F1 or Alt H on any menu brings up the General Help window that describes the legend keys and their alternates.
The scroll bar on the right of any window indicates that there is more than one page of in­formation in the window. Use Page Up and Page Down to display all the pages. Pressing
Home and End displays the first and last page.
Press Esc to exit the current window.
Main Menu Options
Table Section 2-2 lists and describes the available parameters when the Main menu is se­lected in the legend bar. Other Main Menu parameters are available directly from Main Menu summary window.
Parameters available directly from the Main Menu summary window have a right-pointing triangle next to the parameter. Use the arrow keys to move the cursor to parameter and press Enter to select a submenu.
See the sections following Table Section 2-2 for a description of Main Menu parameters from the summary window.
Table Section 2-2 Legend Bar Main Menu Parameters
Parameter Options Description
System Time HH:MM:SS Sets the system time. System Date MM/DD/YYYY Sets the system date. Diskette A:
Diskette B:
Video System Monochrome
System Memory Automatically detected
Extended Memory Automatically detected
360KB, 5 1/4”
1.2MB, 5 1/4” 720KB, 3 1/2”
1.44MB, 3 1/2”
2.88MB, 3 1/2” Not Installed
EGA/VGA, (default) CGA 80x25
by the system
by the system
Selects the type of diskette drive in the system.
Selects the default video device.
Displays the amount of conventional memory detected at power-on.
Displays the amount of extended memory detected at power-on.
Page 43
Setup and Operation 2-13
IDE Adapters
IDE adapters control the IDE devices, such as IDE hard disk drives and IDE CD-ROM readers, in the system. The system uses two IDE controllers integrated on the system board.
Setup supports up to four IDE devices, with an IDE adapter for each of the following con­figurations:
1 Master 1 Master, 1 Slave 2 Masters 2 Masters, 1 Slave 2 Masters, 2 Slaves
The master/slave combination for standard configurations with an IDE hard disk is “1 Master.” If adding a hard disk to the fast IDE port (primary channel), the combination be­comes “1 Master, 1 Slave.” Jumper settings on the IDE device set the device to master or slave (see the documentation that comes with the device).
Select the IDE Adapter option configuration directly from the Main Menu summary win­dow. Available options include:
n IDE Adapter 0 Master n IDE Adapter 0 Slave n IDE Adapter 1 Master n IDE Adapter 1 Slave
IDE Adapter 0 configures the fast IDE port (primary channel), IDE Adapter 1 configures the standard IDE port (secondary channel).
Each IDE Adapter parameter has a right-pointing arrow to the left of it. Selecting the op­tion displays IDE hard disk parameters. Select an IDE Adapter option and set parameters for each hard disk separately.
Use the following table to configure the hard disk. If the IDE hard disk features auto IDE type detection, select the Autotype Fixed Disk parameter. The system then automatically detects the hard disk type and sets the remaining parameters.
Page 44
2-14 Setup and Operation
Table Section 2-4 IDE Hard Disk Parameters
Parameter Options Description
Autotype Fixed
Disk
Type 1 to 39 User Selecting 1 to 39 fills in all remaining fields with
Heads 1 to 64 Specifies number of read/write heads. Sectors/Track 1 to 63 Specifies number of sectors per track. Landing Zone* 1 to 2048 Specifies number of cylinder specified as the
Write Precomp* 1 to 2048
*IDE drives do not require setting Landing Zone and Write Precomp.
Automatically detected by the system
None
Pressing Enter causes the system to attempt to detect the hard disk type. If successful, Setup fills in the remaining fields on this menu and disk parameters need not be selected.
values for predefined disk type. “User” prompts user to fill in remaining fields.
landing zone for the read/write heads. Specifies number of the cylinder at which to
change the write timing.
Memory Shadow
For memory shadowing parameters, select “Memory Shadow” directly from the Main Menu summary window. See the following table for a description of Memory Shadow parameters.
CAUTION: Incorrect settings can cause the system to malfunction.
Table Section 2-5 Memory Shadow Parameters
Parameter Options Description
System shadow Not user-
selectable
Video shadow Not user-
selectable
Shadow Memory
Regions
Enabled Disabled
Always enabled. Shadows video BIOS and improves performance.
Always enabled. Shadows video BIOS and improves performance.
Default is disabled. Shadows optional ROM located in specified segments of memory and can
improve performance. CAUTION: Some add-in cards, particularly with on-board firmware, do not work properly when shadowed.
Page 45
Setup and Operation 2-15
Boot Sequence
The system might require a Supervisor password to set Boot Sequence parameters. Select “Boot Sequence” directly from the Main Menu summary window to display the “Boot Op­tions” menu.
Use the legend keys to make the selections and exit to the Main Menu. Use the following table to select the boot options.
Table Section 2-6 Boot Parameters
Parameters Options Description
Boot sequence A: then C: (default)
C: then A: C: only
Setup prompt Enabled (default)
Disabled
POST errors Enabled (default)
Disabled
Floppy check Enabled (default)
Disabled
Summary screen Enabled (default)
Disabled
Last Boot Fail 2 – 5
Disabled (default)
The BIOS attempts to load the operating system from the disk drives in the sequence selected here.
“C: only” (under Supervisor password control) provides virus protection.
Displays “Press<F2> for Setup” during bootup.
At boot error, pauses and displays “Press <F1> to resume, <F2> for Setup”.
Seeks diskette drives during bootup. Disabling speeds boot time.
Describes system configuration at the end of bootup.
Number of times the system an fail to boot before the boot fail message appears.
Numlock
Select “Numlock” directly from the Main Menu summary window to display the Keyboard Features menu.
Use the legend keys to make the selections and exit to the Main Menu. Use the following table to configure the keyboard parameters.
Page 46
2-16 Setup and Operation
Table Section 2-7 Numlock Parameters
Parameters Options Description
Numlock Auto (default)
On Off
Keyboard auto-
repeat rate
Keyboard auto-
repeat delay
Key Click Enabled
Fast (default) Medium Slow
1/4 sec 1/2 sec (default) 3/4 sec 1 sec
Disabled (default)
On or Off turns NumLock on or off at bootup. Auto turns NumLock on if it finds a numeric key pad.
Sets the delay time after the key is held down and before it begins to repeat the keystroke.
Turns audible key click on or off.
Advanced Menu
Accessing the Advanced menu might require a Supervisor password. Selecting “Advanced” from the menu bar on the Main Menu displays a menu with the following options:
n Integrated Peripherals n Parity n Large Disk Access Mode.
The following sections describe Advanced menu options.
CAUTION: Setting items in this menu to incor- rect values can cause the system to malfunction.
Integrated Peripherals Menu
Select “Integrated Peripherals” menu on the Advanced Menu to configure the connections between the system processor and the I/O ports (serial port 1, serial port 2, and the printer port), the diskette drives, and hard disk controllers.
CAUTION: If the system conditions require changing COM1, COM2, and LPT port settings, be sure that these settings match the corre­sponding system board jumper settings (see Sec­tion 2).
Page 47
Setup and Operation 2-17
NOTE: A Supervisor password might be re-
quired to select parameters from the Integrated Peripherals menu.
Use the legend keys to make the selections and exit to the Main Menu. Use the following table to configure the peripherals:
Table Section 2-8 Integrated Peripherals Parameters
Feature Options Description
COM1 port
COM2 port
LPT port Disabled
Diskette
Controller
IDE Controller Enabled (default)
VESA IDE
controller
Disabled User-selectable settings Auto
378, IRQ 7 (default) User-selectable settings Auto
Enabled (default) Disabled
Disabled Enabled (default)
Disabled
Selects a unique address and interrupt request for the listed COM ports. Auto selects the next available combination.
COM1 default: 3F8, IRQ4 COM2 default: 2F8, IRQ3
COM port settings must match system board JP9A and JP9B jumper setting, later in this section.
Selects a unique address and interrupt request for the LPT port. Auto selects the next available combination.
The LPT port setting must match the system board JP9C jumper setting, later in this section.
Enables the on-board diskette drive controller.
Enables the on-board standard IDE controller (secondary channel).
Enables the on-board fast IDE controller (primary channel).
Parity
The Parity option in the Advanced menu controls system memory parity checking. The de­fault setting for the U.S. and Canada is “Disabled.” This parameter might require a Supervi­sor password.
NOTE: Due to system specifications required by international markets, only international sys­tems support memory parity. Systems sold in the U.S. and Canada do not support memory parity.
Page 48
2-18 Setup and Operation
Large Disk Access Mode
Select the Large Disk Access Mode parameter when configuring a large disk (see Table Section 2-9).
Use the legend keys to make the selections and exit to the Main Menu.
Table Section 2-9 Large Disk Parameters
Parameter Options Description
Large Disk Mode DOS
Other
Select DOS when using DOS. Select other when using another operating system such as UNIX.
A large disk is one that has more than 1024 cylinders, more than 16 heads, or more than 63 tracks per sector.
Security Menu
Selecting “Security” from the Main Menu displays a menu with system security options.
NOTE: Enter the Setup program with either a User or Supervisor password. However, more Setup choices are available with the Supervisor password.
CAUTION: The features set in the Security menu affect the features that appear on the Secu­rity menu as well as on other Setup menus.
Enabling “Supervisor Password” requires a password for entering Setup. Passwords are not case sensitive.
Pressing Enter at either Set Supervisor Password or Set User Password on the menu dis­plays a Set Password dialog box with the following prompts:
Enter new password: [ ] Re-enter new password: [ ]
To set a password, type the password and press Enter. Reenter the password and press
Enter.
Page 49
Setup and Operation 2-19
See Table Section 2-11 for a description of the security features. Use the legend keys to make the selections and exit to the Main Menu.
Table Section 2-11 System Security Options
Feature Options Description
Supervisor Password Disabled (default)
Enabled
Set Supervisor
Password
User Password Disabled (default)
Set User Password Up to seven
Password on boot Disabled (default)
Diskette access Supervisor
Up to seven alphanumeric characters
Enabled
alphanumeric characters
Enabled
(default) User
Must set to enabled to set a Supervisor password.
Pressing Enter displays dialog box for entering the supervisor password. This password gives FULL access to Setup menus.
Must set to enabled to set a User password.
Pressing Enter displays the dialog box for entering the user password. This password gives RESTRICTED access to Setup menus. Requires prior setting of Supervisor password.
Enabled requires a password on boot (cold boot only — no password required for warm boot). Requires prior setting of the Supervisor and/or User password.
If disabled, password(s) are required for entering Setup but are not required for booting.
If Supervisor password is set and this option is disabled, the BIOS boots without asking for a password.
Supervisor restricts use of diskette drives to supervisor. Requires setting the Supervisor password.
Fixed disk boot
sector
System backup
reminder Virus check reminder
Normal (default) Write Protected
Disabled (default) Daily Weekly Monthly
Write protected helps prevent viruses. When write protected, operating systems (and viruses and application programs) which attempt to modify the boot sector will not be able to do so.
When a schedule is specified, displays a message during bootup asking (Y/N) the system has been backed up or scanned for viruses.
Message returns on each boot until “Y” is responded.
Daily displays the message on the first boot of the day, weekly on the first boot after Sunday, and monthly on the first boot of the month.
Page 50
2-20 Setup and Operation
Power Menu
Selecting “Power” from the menu bar displays a screen with the power management pa­rameters described in the following table.
A power-management system reduces the amount of energy used after specified periods of inactivity. The Power menu supports a Full On state, a Standby state with partial power re­duction, and a Suspend state with full power reduction.
Use the Power menu to specify the settings for Power Management. Use the legend keys to make the selections and exit to the Main Menu. Use the following
chart in making the selections.
Table Section 2-13 Power Management Parameters
Feature Options Description
Power
Savings Mode
Standby
Timeout
Suspend
Timeout
Standby CPU
speed
Fixed Disk
Timeout
CRT Disabled
IRQ1...IRQ15 Disabled
Disabled Customize (default) Max. Power Savings Med. Power Savings Min. Power Savings
Disabled (default) User Selectable
Disabled (default) User Selectable
Disabled Max/3 (default) Max/4
Disabled (default) User Selectable
Enabled (default)
Enabled
Max., Med., and Min. set power-management options with predefined values. Select Customize to make the own selections from the following fields. Disabled turns off all power management.
Inactivity period required to put system in Standby (partial power shutdown)
Inactivity period required after Standby to Suspend (maximum power shutdown)
Sets processor speed during Standby. Max/3 divides speed by 3, Max/4 by 4.
Inactivity period of fixed disk required before standby (motor off)
Blanks out CRT in Standby mode
During Suspend, enabled IRQ turns on processor clock
Page 51
Setup and Operation 2-21
Exit Menu
Selecting “Exit” from the menu bar displays the following exit options:
n Save values & Exit n Discard values & Exit n Get Default Values n Load Previous Values n Save Current Values.
The following sections describe each of the options on the Exit Menu. Note that Esc does not exit this menu. Select one of the items from the menu or menu bar to exit.
Save Values & Exit
After making the selections on the Setup menus, always select Save to make them opera­tive.
Unlike standard RAM memory, NVRAM is sustained by an onboard battery when the sys­tem off.
After saving the selections, the program displays this message:
Changes have been saved Press <space> to continue
A prompt appears if attempting to exit without saving, During bootup, Setup attempts to load the values saved in NVRAM. If the values saved in
NVRAM cause the system boot to fail, reboot and press F2 to enter Setup. In Setup, the default values (as described below) can be loaded or change the values that caused the boot to fail.
Discard Values & Exit
Use this option to exit Setup without recording any changes.
Get Default Values
To load all the default Setup values in the Setup menus, select Load ROM Default Values from the Main Menu. The program displays this message:
Default values have been loaded Press <space> to continue
Page 52
2-22 Setup and Operation
If, during bootup, the BIOS program detects a problem in the integrity of values stored in NVRAM, it displays these messages:
System CMOS checksum bad - run SETUP Press <F1> to resume, <F2> to Setup
The CMOS values have been corrupted or modified incorrectly, perhaps by an application program that changes data stored in CMOS.
Press F1 to resume the boot or F2 to run Setup with the ROM default values already loaded into the menus. Other changes can be made before saving the values to NVRAM.
Load Previous Values
During a Setup session, if a mistake has been made and has not yet saved to NVRAM, the previously saved NVRAM values can be restored.
Selecting Load Previous Values on the Exit menu updates all the selections and displays this message:
Previous values have been loaded Press <space> to continue
Save Current Values
Save Current saves all the selections without exiting Setup. Other menus selections can be reviewed or changed.
Page 53
Setup and Operation 2-23
BIOS UPDATE UTILITY
The NEC Bulletin Board Service (BBS) provides users with information about system software and hardware. Use the NEC BBS to obtain the latest version of the BIOS Update utility (BUU) and for VGA video drivers.
To log onto the NEC BBS, follow these steps:
NOTE: First time users must answer a new user questionnaire.
1. From the Windows Program Manager, select Accessories and double click on
Terminal.
2. From the Settings menu, select Communications and check that the settings match
the following BBS parameters:
n Baud rate: 2400 bps n Parity: none n Data bits: 8 n Stop bits: 1
3. Log onto the BBS:
n Click on the Phone menu item. n Enter the BBS phone number 508 635-4706. n Click on “OK.”
4. Press Enter twice.
5. Enter your first name, last name, and password. Press Enter after each.
6. Follow the screen prompts until the NECTECH Main Menu is displayed. The
prompts require that you do the following:
n Press S and then Enter n Press S and then Enter n Press Enter three times.
7. At the NECTECH Main Menu, press F and Enter for the file menu.
Page 54
2-24 Setup and Operation
To hang up and log off, follow these steps at the NEC Technologies Bulletin Board:
1. Press Enter (to continue).
2. Press G (command for Goodbye/Hangup).
3. Press Enter.
SYSTEM BOARD JUMPERS
Figure Section 2-7 shows the factory settings and locations of the system board jumpers. Explanations of each follow the figure.
* *
JP3 JP2 JP12
1 2 31 2 3 1 2 3 3 2 123 1
JP11 JP6
A B DC E
42
JP9
31
*
Factory settings depend on system processor. See the jumper descriptions.
86
75
1210 14 16
119 13 15
2018
1917
JP1
23 1
Figure Section 2-7 System Board Jumpers
Page 55
Setup and Operation 2-25
Table Section 2-14 shows the factory settings of the system configuration jumpers and ex­plains the function of each position.
Table Section 2-14 System Configuration Jumpers
Jumper Function Factory Setting
JP1 Clear CMOS jumper – Reset CMOS to factory settings.
1–2 Shorted: Clears and resets CMOS to factory settings 2–3 Shorted: Normal operation
JP2 Processor upgrade jumper – Selects write-through or write-back
mode. 1–2 Shorted: Selects write-through mode
2–3 Shorted: Selects write-back mode (future processors)
JP3 SX processor jumper – Selects SX or DX processor.
1–2 Shorted: DX based systems 2–3 Shorted: SX based systems
JP6 CPU clock select jumper – Sets the input clock speed to the
CPU. 1–2 Shorted: CPU clock speed is 33 MHz
2–3 Shorted: CPU clock speed is 25 MHz
JP9A Serial port 1 interrupt jumpers – Selects the interrupt for serial
port 1. 1–2 Shorted: IRQ4
3–4 Shorted: IRQ10
2–3 Shorted
1–2 Shorted
1–2 Shorted (466D, 466M, 4100M)
2–3 Shorted (433D) 1–2 Shorted
1–2 Shorted
JP9B Serial port 2 interrupt jumpers – Selects the interrupt for serial
port 2. 5–6 Shorted: IRQ3
7–8 Shorted: IRQ11
JP9C Printer port interrupt jumpers – Selects the interrupt for the
parallel port. 9–10 Shorted: IRQ7
11–12 Shorted: IRQ5
JP9D Printer port DMA jumpers – Selects the DMA channel for the
parallel port. 13–14 Shorted: DMA channel 1
15–16 Shorted: DMA channel 3
5–6 Shorted
9–10 Shorted
15–16 Shorted
Page 56
2-26 Setup and Operation
Table Section 2-14 System Configuration Jumpers
Jumper Function Factory Setting
JP9E Printer port DACK jumpers – Selects the DMA acknowledge-
ment for the parallel port. 17–18 Shorted: DACK1
19–20 Shorted: DACK3
JP11 Sleep mode power saver jumper – Selects the processor clock
speed in sleep mode. 1–2 Shorted: 16-MHz (DX4)
2–3 Shorted: 8-MHz (SX and DX2)
JP12 Built-in VGA controller jumper – Enables and disables the built-
in VGA control. 1–2 Shorted: Enables the integrated VGA controller
2–3 Shorted: Disables the integrated VGA controller
19–20 Shorted
1–2 Shorted (4100M) 2–3 Shorted (433D,
466D, 466M)
1–2 Shorted
Page 57

Section 3

Options
This section provides installation instructions for installing the OverDrive processor, SIMM memory, secondary cache, video DRAM module, video cache chip, 5 1/4-inch devices, and a monitor option. All options except for the monitor require that the system unit top cover be removed. When installing the monitor, turn to the “NEC SVGA Monitor” subsection.
INTERNAL OPTIONS
All internal options require the top cover to be removed. When disassembling the system unit for option installation, follow these general rules.
n Disconnect all peripherals. n When handling boards or chips, touch the system unit frame to discharge static. n Do not disassemble parts other than those specified in the procedure. n All screws are Phillips-head, unless otherwise specified. n Label any removed connectors. Note where the connector goes and in what posi-
tion it was installed.
WARNING: Unplug the power cord before dis­assembling the system unit. Voltage is present in­side the system unit even after the power switch is turned off. All voltage is removed only when the power cord is unplugged.
Page 58
3-2 Options
Desktop Cover Removal
Remove the desktop cover as follows.
1. Power off and unplug the keyboard, mouse, power and all other peripheral cables
attached to the system unit.
2. Remove the two cover screws shown in Figure Section 3-1.
Figure Section 3-1 Desktop Cover Screws
3. Slide the top cover toward the rear about one inch.
4. Lift the top cover up and off (see Figure Section 3-2).
Screws
Figure Section 3-2 Removing the Desktop Cover
Page 59
Minitower Cover Removal
Remove the minitower cover as follows.
1. Power off and unplug the keyboard, mouse, power cord and all other peripheral
cables attached to the system unit.
2. Remove the three cover screws shown in Figure Section 3-4.
Options 3-3
Screws
Figure Section 3-4 Minitower Cover Screws
Page 60
3-4 Options
3. Slide the top cover toward the rear about one inch (see Figure Section 3-6).
4. Lift the top cover up and aff the system unit.
Figure Section 3-6 Removing the Minitower Cover
Expansion Board(s)
There are five ISA 8/16-bit expansion slots on the ISA backboard. One of the five is an ISA/VL-Bus expansion slot. Two of the expansion board slots are occupied by the sound board and fax/modem board. Expansion boards plug into the edge connector on the back­board. See Appendix A for ISA connector pin assignments.
Page 61
Desktop Expansion Board Installation
Install expansion boards into the desktop system as follows.
1. Remove the top cover as previously described.
2. Remove the expansion slot screw and cover (see Figure Section 3-8). Save the
expansion slot cover in the event the expansion board is removed in the future.
To remove the expansion slot cover on the inside of the ISA/VL-Bus backboard,
remove the backside expansion slot screws shown in Figure Section 3-10.
ISA Slots*
ISA Slot
ISA/VL-Bus Slot
Options 3-5
ISA Slot
**
**
For three-quarter length boards.
*
For half-length boards. Other slots are full length.
Figure Section 3-8 Desktop Expansion Slots
Page 62
3-6 Options
Screw
L-Bracket
3. When removing an expansion slot cover from the inside of the ISA/VL-Bus back-
board, separate the inside expansion slot L-bracket from the expansion slot cover by removing the screw shown in Figure Section 3-12.
Slot Cover
Slot Cover Screw (for top slot)
Figure Section 3-10 Inside Expansion Slot Screw
Reattach the L-bracket to the expansion board being installed.
Slot Cover
Figure Section 3-12 Removing the Inside Expansion Slot Bracket
4. Install the expansion board into an expansion slot connector. When installing a
full-size expansion board, make sure that the expansion board slides into the guide rail at the front of the system unit.
NOTE: A full-size expansion board cannot be installed into the backside expansion slots.
Page 63
5. Reinstall the expansion slot screw to secure the expansion board.
6. Connect any expansion board cables.
7. Replace the top cover.
Minitower Expansion Board Installation
Install expansion boards into the minitower system unit as follows.
1. Remove the top cover as previously described.
2. Remove the expansion slot screw and cover (see Figure Section 3-14). Save the
expansion slot cover in the event the expansion board is removed in the future.
ISA/VL-Bus Slot
ISA Slot*
Options 3-7
ISA Slots
*Half-length slot: other slots are full-length.
Figure Section 3-14 Minitower Expansion Slots
3. Install the expansion board into an expansion slot connector. When installing a
full-size expansion board, make sure that the expansion board slides into the guide rail at the front of the system unit.
4. Reinstall the expansion slot screw to secure the expansion board.
5. Connect any expansion board cables.
6. Replace the top cover.
Page 64
3-8 Options
Expansion Board Troubleshooting
If a fault occurs at power-on, verify that the expansion board installation was performed correctly. One beep indicates that the computer has completed its power-on self-test. If in­termittent beeping occurs, turn off the computer and try again. If the beeping persists, see “Troubleshooting” in Section 4.
Table Section 3-1 summarizes problems that may develop after installing an expansion board and lists in sequential order suggested corrective actions.
Table Section 3-1 Expansion Board Problems and Solutions
Problem Symptom Solution
No power Power lamp on computer
status panel will not light.
Operating system does not boot
Expansion board malfunction
An invalid configuration message is displayed.
Expansion board is not recognized.
1. Check that the power cord is plugged into the AC connector on the computer. Check that the other end of the cord is plugged into a live properly grounded AC power outlet.
2. Systematically eliminate possible shorted PCBs by removing cables and expansion boards.
1. Press F2 to run the Setup and view parameters.
1. Reseat expansion board and cables.
2. Check that pin one on cables and connectors match up.
3. Install the expansion board in a different slot.
4. Check the troubleshooting information that came with the expansion board.
5. Check any switches or jumpers that are on the expansion board.
Keyboard or mouse malfunction
Monitor has prompt, but cannot input data.
6. Disable built-in controllers when installing optional video, diskette and hard drive expansion boards (see Section 2).
7. Check that IRQs and the address do not clash with those already assigned by the system board (see Section 1).
8. Replace expansion board.
9. Replace ISA backboard.
1. Check that the keyboard is plugged in.
2. Check that the mouse is plugged in.
Page 65
Options 3-9
System Board Options
The following system board options are available for all the desktop and minitower systems.
n OverDrive processor n SIMM memory n Secondary cache n Video DRAM module n Video cache chip
Once the top cover is removed (as previously described), use Figure Section 3-16 to locate each of the system board option sockets. The following subsection provide the procedures for installing each option into the system board.
Secondary Cache
SIMM Sockets
Socket
Video DRAM Sockets
Video Cache Socket
PGA/OverDrive Socket
Bank 0 U1
Bank 2 U10
Figure Section 3-16 System Board Option Sockets
Bank 3 U2
Bank 1 U11
Page 66
3-10 Options
Lever
OverDrive Processor Installation
The zero-insertion force (ZIF) pin-grid arrays (PGA)/OverDrive socket accepts processors. Once the currently installed processor is removed from the socket, the next generation OverDrive Processor can be installed.
The Intel486DX2-66, and DX4-100 CPUs have a math coprocessor built into the micro­processor and can be upgraded by replacing the processor with the next generation Over­Drive processor. The PowerMate 433D (Intel486SX-33) accepts either an Intel487SX math coprocessor or an OverDrive processor in the PGA/OverDrive socket.
The procedure is the same for installing a math coprocessor or an OverDrive processor into the PGA/OverDrive socket for both the desktop and minitower systems.
CAUTION: Heatsinks are required for micro­processors, math coprocessors, and OverDrive processors installed in the systems.
Heatsinks are available through NEC.
Install a OverDrive processor into the system board as follows.
1. Remove the top cover and any expansion boards covering the PGA/OverDrive
socket as previously described.
2. Locate the PGA/OverDrive socket on the system board (see Figure Section 3-16).
3. Lift the PGA/OverDrive socket lever (shown in Figure Section 3-18) all the way
back and remove the processor currently installed.
Figure Section 3-18 PGA/OverDrive Socket Lever
Page 67
Options 3-11
Hole
4. Insert the OverDrive processor by aligning the knotch corner with inner alignment
hole of the socket (see Figure Section 3-20).
Dot
Notched Corner of Chip (heatsink not shown)
Alignment
Figure Section 3-20 OverDrive Processor Alignment
5. Set the jumper settings for the installed OverDrive processor (see Section 2,
Setup and Operation).
6. Replace any removed expansion boards.
7. Replace the top cover and run Setup to reconfigure the computer for the Over-
Drive processor (see Section 2, Setup and Operation).
Page 68
Section 3
Options
OverDrive Processor Troubleshooting
If a fault occurs at power-on, verify that the installation was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beeping oc­curs, turn off the computer and try again. If the beeping persists, see Section 4, Mainte­nance and Troubleshooting.
Table Section 3-1 summarizes problems that may develop after installing a OverDrive proc­essor and lists in sequential order suggested corrective actions.
Table Section 3-1 OverDrive Problems and Solutions
Problem Symptom Solution
No power Power lamp on computer
status panel will not light.
Operating system does not boot
OverDrive Processor malfunction
Keyboard or mouse malfunction
An invalid configuration message is displayed.
Software does not see OverDrive Processor.
Monitor has prompt, but cannot input data.
1. Check that the power cord is plugged into the AC connector on the computer. Check that the other end of the cord is plugged into a live properly grounded AC power outlet.
1. Press F2 to run setup and view parameters.
1. Reseat the OverDrive Processor.
2. Check the setup parameters
3. Check the jumper settings (see Section 2).
4. Replace OverDrive Processor.
5. Replace system board.
1. Check that the keyboard is plugged in.
2. Check that the mouse is plugged in.
Page 69
3-12 Options
SIMM Memory Installation
The system board comes standard with 4 MB of memory. Memory over the first megabyte of RAM is extended RAM. SIMM kits are 70-ns SIMMs.
NOTE: The metal plating on the SIMM stick connectors must match the metal plating in the SIMM sockets of the computer. Use tin-plated SIMM sticks with tin-plated SIMM sockets.
Memory expansion options include the following kits.
n 4-MB SIMM kit is a 1 MB x 32 bit SIMM stick. n 8-MB SIMM kit is a 2 MB x 32 bit SIMM stick. n 16-MB SIMM kit is a 4 MB x 32 bit SIMM stick. n 32-MB SIMM kit is a 8 MB x 32 bit SIMM stick.
NOTE: 32-bit SIMM kits are used in the U.S. and Canada only. 36-bit SIMMs are used else­where.
SIMM Upgrade Path
The SIMM kits install into a SIMM socket on the system board. Different size SIMM up­grade kits may be intermixed. Each kit is inserted into a socket or bank. The SIMM kits in­stall into the system board starting with the bank 0 (U1). The system board's four SIMM sockets are assigned as banks 0 through 3 (see Error! Reference source not found.). The PowerMate 433D, 466D, and 466M have standard 4 MB of memory installed bank 0. The PowerMate 4100M has standard 8 MB of memory installed banks 0 and 1. Table Section 3­3 provides valid SIMM configurations.
NOTE: SIMM banks are not in consecutive or­der; see Error! Reference source not found. to identify the banks.
Page 70
Options 3-13
Table Section 3-3 SIMM Configurations
Memory Bank 0 Bank 1 Bank 2 Bank 3
4 MB 4-MB SIMM Empty Empty Empty 8 MB 4-MB SIMM 4-MB SIMM Empty Empty 8 MB 8-MB SIMM Empty Empty Empty 12 MB 4-MB SIMM 4-MB SIMM 4-MB SIMM Empty 12 MB 4-MB SIMM 8-MB SIMM Empty Empty 16 MB 4-MB SIMM 4-MB SIMM 4-MB SIMM 4-MB SIMM 16 MB 8-MB SIMM 8-MB SIMM Empty Empty 16 MB 16-MB SIMM Empty Empty Empty 20 MB 16-MB SIMM 4-MB SIMM Empty Empty 20 MB 4-MB SIMM 4-MB SIMM 4-MB SIMM 8-MB SIMM 24 MB 4-MB SIMM 4-MB SIMM 16-MB SIMM Empty 24 MB 8-MB SIMM 8-MB SIMM 8-MB SIMM Empty 28 MB 4-MB SIMM 4-MB SIMM 4-MB SIMM 16-MB SIMM 32 MB 16-MB SIMM 16-MB SIMM Empty Empty 32 MB 8-MB SIMM 8-MB SIMM 8-MB SIMM 8-MB SIMM 36 MB 4-MB SIMM 16-MB SIMM 16-MB SIMM Empty 40 MB 4-MB SIMM 4-MB SIMM 16-MB SIMM 16-MB SIMM 48 MB 16-MB SIMM 16-MB SIMM 16-MB SIMM Empty 52 MB 4-MB SIMM 16-MB SIMM 16-MB SIMM 16-MB SIMM 64 MB 16-MB SIMM 16-MB SIMM 16-MB SIMM 16-MB SIMM 72 MB 8-MB SIMM 32-MB SIMM 32-MB SIMM Empty 80 MB 16-MB SIMM 16-MB SIMM 16-MB SIMM 32-MB SIMM 80 MB 8-MB SIMM 8-MB SIMM 32-MB SIMM 32-MB SIMM 96 MB 16-MB SIMM 16-MB SIMM 32-MB SIMM 32-MB SIMM 96 MB 32-MB SIMM 32-MB SIMM 32-MB SIMM Empty 100 MB 4-MB SIMM 32-MB SIMM 32-MB SIMM 32-MB SIMM 104 MB 8-MB SIMM 32-MB SIMM 32-MB SIMM 32-MB SIMM 112 MB 16-MB SIMM 32-MB SIMM 32-MB SIMM 32-MB SIMM 128 MB 32-MB SIMM 32-MB SIMM 32-MB SIMM 32-MB SIMM
Page 71
3-14 Options
SIMM Installation
Install SIMM sticks into the system board as follows.
1. Remove the top cover and any expansion boards covering the socket as previ-
ously described.
2. Insert the SIMM into the SIMM socket at an angle, then push the SIMM upright
so that the clips hold the SIMM in place (see Figure Section 3-1).
1 of 2 Clips
Figure Section 3-1 SIMM Installation
3. Repeat steps 2 for each SIMM to be installed.
4. Replace any removed expansion boards.
5. Replace the top cover and run Setup to reconfigure the computer for the addi-
tional memory (see Section 2, Setup and Operation).
Page 72
Options 3-15
SIMM Upgrade Kit Troubleshooting
If a fault occurs at power-on, verify that the reassembly was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beeping oc­curs, turn off the computer and try again. If the beeping persists, see Section 4, Mainte­nance and Troubleshooting.
Table Section 3-5 summarizes problems that may develop after installing SIMM upgrade kits and lists in sequential order suggested corrective actions.
Table Section 3-5 SIMM Upgrade Problems and Solutions
Problem Symptom Solution
No power Power lamp on computer
status panel will not light.
Operating system does not boot
Memory malfunction
Keyboard or mouse malfunction
An invalid configuration message is displayed.
Total memory is not recognized.
Monitor has prompt, but cannot input data.
1. Check that the power cord is plugged into the AC connector on the computer. Check that the other end of the cord is plugged into a live properly grounded AC power outlet.
1. Press F2 to run setup and view parameters.
1. Reseat SIMMs. SIMM sticks must be in specified banks (see Table Section 3-3).
2. Systematically swap SIMMs.
3. Replace SIMMs.
4. Replace system board.
1. Check that the keyboard is plugged in.
2. Check that the mouse is plugged in.
Page 73
3-16 Options
End
Secondary Cache Installation
The system board comes standard with 8 KB of cache integrated into the Intel486SX-33 and the Intel486DX2-66 CPUs. The Intel486DX4-100 has 16 KB of integrated cache. The CPU cache is called the primary cache and any cache not integrated into the CPU is call secondary cache. The optional secondary cache kit consists of a 256-KB SIMM. The sec­ondary cache is installed into the socket on the system board shown in Error! Reference source not found..
Install the secondary cache SIMM stick per Figure Section 3-3 and the following steps.
1. Remove the top cover and any expansion boards covering the cache socket as
previously described.
2. Insert the cache SIMM stick into the optional cache socket so that the socket tab
holds the SIMM in place.
Socket Tab
Notched
Figure Section 3-3 Secondary Cache Installation
3. Replace any removed expansion boards.
4. Replace the top cover and run Setup to reconfigure the computer for the addi-
tional cache (see Section 2, Setup and Operation).
Page 74
Options 3-17
Secondary Cache Kit Troubleshooting
If a fault occurs at power-on, verify that the reassembly was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beeping oc­curs, turn off the computer and try again. If the beeping persists, see Section 4, Mainte­nance and Troubleshooting.
Table Section 3-7 summarizes problems that may develop after installing a secondary cache kit and lists in sequential order suggested corrective actions.
Table Section 3-7 Secondary Cache Problems and Solutions
Problem Symptom Solution
No power Power lamp on computer
status panel will not light.
Operating system does not boot
Secondary cache malfunction
Keyboard or mouse malfunction
An invalid configuration message is displayed.
Cache memory is not recognized.
Monitor has prompt, but cannot input data.
1. Check that the power cord is plugged into the AC connector on the computer. Check that the other end of the cord is plugged into a live properly grounded AC power outlet.
1. Press F2 to run setup and view parameters.
1. Reseat secondary cache stick.
2. Replace cache stick.
3. Replace system board.
1. Check that the keyboard is plugged in.
2. Check that the mouse is plugged in.
Page 75
3-18 Options
Video DRAM Module Installation
The system board comes standard with 1 MB of video DRAM integrated into the system board. The optional video DRAM kit consists of two 256K x 16 (512 KB) modules which adds 1 MB of video DRAM, and a video cache chip. The cache chip must be installed when installing the video DRAM modules. The optional video DRAM is installed into the video DRAM sockets on the system board shown in Error! Reference source not found.. See the next subsection to install the video cache chip.
Install the video DRAM modules into the system board as follows.
1. Remove the top cover and any expansion boards covering video DRAM socket as
previously described.
2. Insert the video DRAM module into the video module socket aligning the notched
end on the module with the alignment dot outside the video DRAM socket (see Figure Section 3-5).
3. Repeat step 2 to insert the second module.
Video DRAM Module
Notched End of Module
Socket
Alignment Dot
Figure Section 3-5 Video DRAM Module Installation
4. Replace any removed expansion boards.
5. Replace the top cover and run Setup to reconfigure the computer for the addi-
tional video memory (see Section 2, Setup and Operation).
Page 76
Options 3-19
Video DRAM Module Troubleshooting
If a fault occurs at power-on, verify that the reassembly was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beeping oc­curs, turn off the computer and try again. If the beeping persists, see Section 4, Mainte­nance and Troubleshooting.
Table Section 3-9 summarizes problems that may develop after installing a video DRAM module and lists in sequential order suggested corrective actions.
Table Section 3-9 Video DRAM Module Problems and Solutions
Problem Symptom Solution
No power Power lamp on computer
status panel will not light.
Operating system does not boot
Video DRAM malfunction
Keyboard or mouse malfunction
An invalid configuration message is displayed.
Cache memory is not recognized.
Monitor has prompt, but cannot input data.
1. Check that the power cord is plugged into the AC connector on the computer. Check that the other end of the cord is plugged into a live properly grounded AC power outlet.
1. Press F2 to run setup and view parameters.
1. Reseat the video DRAM module checking for bent pins and correct orientation.
2. Replace video DRAM module.
3. Replace system board.
1. Check that the keyboard is plugged in.
2. Check that the mouse is plugged in.
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3-20 Options
Video Cache RAM Chip Installation
The video cache chip enhances the video performance when installed with the optional video DRAM modules. The cache chip provides 128 KB (256K x 4)of cache to the video controller. The optional video cache chip is installed into the video cache socket on the system board shown in Error! Reference source not found..
Install the video cache RAM chip into the system board as follows.
1. Remove the top cover and any expansion boards covering the video cache chip
socket as previously described.
2. Insert the video cache chip into the video cache socket aligning the low dot on the
chip with the alignment dot outside the video cache socket (see Figure Section 3-
7).
High Dot
Video Cache RAM Chip
Low Dot
Socket
Figure Section 3-7 Video Cache RAM Chip Installation
Alignment Dot
3. Replace any removed expansion boards.
4. Replace the top cover and run Setup to reconfigure the computer for the addi-
tional video memory (see Section 2, Setup and Operation).
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Options 3-21
Video Cache RAM Chip Troubleshooting
If a fault occurs at power-on, verify that the reassembly was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beeping occurs, turn off the computer and try again. If the beeping persists, see Section 4, Maintenance and Troubleshooting.
Table Section 3-9 summarizes problems that may develop after installing a video cache RAM module and lists in sequential order suggested corrective actions.
Table Section 3-11 Video Cache RAM Chip Problems and Solutions
Problem Symptom Solution
No power Power lamp on computer
status panel will not light.
Operating system does not boot
Video cache malfunction
Keyboard or mouse malfunction
An invalid configuration message is displayed.
Cache memory is not recognized.
Monitor has prompt, but cannot input data.
1. Check that the power cord is plugged into the AC connector on the computer. Check that the other end of the cord is plugged into a live properly grounded AC power outlet.
1. Press F2 to run setup and view parameters.
1. Reseat the video cache chip checking for bent pins and correct orientation.
2. Replace cache chip.
3. Replace system board.
1. Check that the keyboard is plugged in.
2. Check that the mouse is plugged in.
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3-22 Options
OPTIONAL 5 1/4-INCH SLOT DEVICES
This subsection provides the procedures for installing an optional 5 1/4-inch device into the system unit. The optional NEC diskette and hard disk drives are described first, then proce­dures for installing the devices follow.
5 1/4-Inch Diskette Drive
Two diskette drives are supported in all system. A 3 1/2-inch diskette drive comes standard with the PowerMate systems. The drives are connected by a single ribbon cable with two drive connectors. The first diskette drive (3 1/2-inch) is drive A, the second diskette drive is drive B. The the diskette cable plugs directly into the system board.
The diskette drive controller is incorporated into the system board. The controller contains the circuitry and control functions needed to support up to two diskette drives. See the 5 1/4-inch device installation instructions later in this section.
5 1/4-Inch Diskette Drive Settings
Specifications for the 5 1/4-inch, 1.2-MB diskette drive is listed in Appendix B, Specifica­tions. The standard 1.44-MB diskette drive setting is in shown in Figure Section 3-9. The settings for the optional 1.2-MB diskette drive are shown in Figure Section 3-11.
When installing two diskette drives, both diskette drives are addressed to drive 1. The ter­minating resistor jumper should not be removed from the 5 1/4-inch diskette. Both diskette drives (the standartd and the optional) are normally terminated.
Signal Connector
Front of Drive
DS SW1
Power Connector
Figure Section 3-9 OSDA-90C, 1.44-MB Diskette Drive
Page 80
Terminating Resistor Jumper
Options 3-23
PCB (connectors and jumpers are
attached to back of PCB)
Power Connector
Not Used
3 2 1 0
Drive Address (0, 1, 2, 3)
Signal Connector
Front of Drive
Figure Section 3-11 FD1158C, 1.2-MB Diskette Drive
Hard Disk Drives
There are two IDE interface connectors on the system board. One system board IDE con­nector provides a Fast local bus interface. The other system board IDE connector provides the standard IDE interface. The 3 1/2-inch hard disk drive shipped with the system unit uses the Fast IDE local bus connector. The standard IDE connector on the system board is used by the CD-ROM reader in the desktop systems and is not used in minitower systems.
When installing a second hard disk drive, use the open IDE connector on the cable coming from the Fast local bus system board IDE connector. A hard disk controller board is not re­quired. The IDE drives described in this section are thin-height (1-inch x 3 1/2-inch) drives. See the 5 1/4-inch device installation instructions later in this section.
Hard Disk Drive Settings
The following IDE hard disk drives are available for installation in the system. Systems come with a hard disk drive preinstalled in the computer. Specifications for all the optional IDE hard drives are given in Appendix B, Specifications. Jumpers for the drives are set for single drive configurations. Jumper settings and their locations are shown in Figure Section 3-13 and Figure Section 3-15.
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One drive installed­(Factory Setting)
Two drives installed­Slave
Two drives installed­Master
NOTE: All NEC hard disk drives are shipped
with the jumpers set for: master, one drive in­stalled.
Power Connector
Cable Select Configuration (Dual Drives)
Front of DriveSignal Connector
Figure Section 3-13 WDAC1270/2340/2420 270-, 340-, and 420-MB Hard Disk
Drives
C/D
Drive 1 and Drive 2 Master (factory setting)
C/D
Drive 2 Slave
Figure Section 3-15 CFS420 420-MB Hard Disk Drive
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Options 3-25
DESKTOP 5 1/4-INCH DEVICE INSTALLATION
To install a 5 1/4-inch device into the desktop system, the top cover, 5 1/4-inch blank panel, and the 3 1/2-inch drive bracket must first be removed. “Minitower 5 1/4-inch Device In­stallation” instructions are provided later in this section. When device option kits come with rails preattached. The drive rails must be removed and the screws are reused to secure the drives to the drive bracket.
NOTE: Do not remove the 5 1/4-inch blank panel when installing a hard disk drive.
The 3 1/2-inch hard disk drives must be mounted in 5 1/4-inch bracket.
Desktop 3 1/2-inch Drive Bracket Removal
Remove the 3 1/2-inch drive bracket from the desktop system unit as follows.
1. Remove the top cover as previously described.
2. Remove the four 3 1/2-inch drive bracket screws (see Figure Section 3-17).
3. Without removing the power and signal cables, place the 3 1/2-inch bracket with
the diskette drive and hard disk drive attached on the power supply.
Power Supply
3 1/2-Inch Drive Bracket
Figure Section 3-17 3 1/2-Inch Drive Bracket Screws
Four Screws
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3-26 Options
Desktop Blank Panel Removal
Remove the front panel assembly from the desktop chassis as follows.
1. Remove the desktop cover and 3 1/2-inch diskette drive bracket as previously
described.
2. Unplug the following cables from their connectors (see Figure Section 3-19).
n Power lamp (connector P15) n Hard disk drive busy lamp (connector P7) n Reset button (connector P5)
3. Remove the five front panel screws (see Figure Section 3-19).
4. Feed the lamp and reset cables through the hole in the front of system unit chassis
when removing the front panel assembly.
Front Panel
Lamp and Reset Button Connectors (not shown)
Blank Panel
Five Screws
(behind front panel)
Figure Section 3-19 Indicator Panel Connectors
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Options 3-27
5. From the inside of the front panel, release the blank panel tabs and remove the
panel from the front panel (see Figure Section 3-21).
Front Panel Cover (inside view)
Blank Panels
2 of 4 Tabs
Figure Section 3-21 Desktop Blank Panel Removal
NOTE: The system unit chassis may also re­quire a slot cover punch-out to be removed.
6. Reinstall the front panel once the blank panel is removed.
Desktop 5 1/4-Inch Device Placement
Install the device into the 5 1/4-inch device slot as follows.
1. Remove the top cover, front panel, and 3 1/2-inch drive bracket as previously de-
scribed.
NOTE: When installing 3 1/2-inch hard disk drives, a 5 1/4-inch hard disk bracket must first be attached to the 3 1/2-inch hard disk drives.
2. Slide the rear of the device into the 5 1/4-inch slot. (Be sure that the load/release
button on the diskette drives is on the right when sliding the drive into the device cage.)
Align the holes on the 5 1/4-inch device with the holes in the device cage.
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3-28 Options
3. Install the four device screws that were removed with the rails or that come with
the kit, two on each side of the device cage (see Figure Section 3-23).
Figure Section 3-23 Desktop 5 1/4-Inch Device Screws
Drive Cage
2 of 4 Screws
Continue to desktop 5 1/4-inch device cabling.
Desktop 5 1/4-Inch Diskette Drive Cabling
Cable an optional 5 1/4-inch diskette drive as follows.
1. Locate the diskette drive signal cable (connected to the 3 1/2-inch diskette drive)
and plug middle connector into the 5 1/4-inch diskette drive signal connector (see Figure Section 3-25).
NOTE: When cabling the 5 1/4-inch device, note that all power cables are keyed to fit only in the correct position. The red edge of the diskette drive signal cable is positioned as shown.
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Options 3-29
2. Locate the power connector coming from the power supply and plug correct fit-
ting power cable into the device power connector (see Figure Section 3-25).
1.2-MB Diskette Drive Connector
Red Edge
Power Cable
Diskette Drive Signal Cable
Figure Section 3-25 Desktop 5 1/4-Inch Diskette Drive Cables
Desktop 5 1/4-Inch Hard Disk Drive Cabling
Cable the hard disk drive per Figure 3-18 and the following steps.
1. Locate the IDE hard disk signal cable (connected to the 3 1/2-inch hard disk
drive) and plug the middle connector into the signal connector on the hard disk drive in the 5 1/4-inch slot (see Figure Section 3-27).
NOTE: When installing the drives, note that all power and hard disk signal cables are keyed to fit only in the correct position.
Either of the hard disk drive signal cable connectors may be used for the hard disk drives. The hard disk drives are configured by jumpers as master (drive C) and slave (drive D). The hard disk drive connectors are identified in Figure Section 3-
13.
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3-30 Options
Cable
2. Locate one of the larger power connectors coming from the power supply and
plug it into the hard disk drive power connector (see Figure Section 3-27).
Figure Section 3-27 Desktop 5 1/4-Inch Hard Disk Drive Cables
Power Cable
IDE
Finishing Desktop 5 1/4-Inch Device Installation
Replace the assemblies removed earlier and reconfigure the system as follows.
1. Reinstall the 3 1/2-inch drive bracket by reversing the steps of the “Desktop
3 1/2-inch Drive Bracket Removal” procedure given earlier.
2. Replace the top cover and run Setup to reconfigure the computer for the hard
disk drive (see Section 2, Setup and Operation). If a fault occurs at power-on, verify that the reassembly was performed correctly.
Reconfigure the computer for the hard disk drive by selecting hard disk drive “In­stalled” in Setup. Setup will automatically detect the hard disk type. When in­stalling a hard disk drive that cannot be detected, use the “Define Hard Disk Type” to determine the hard disk drive type.
MINITOWER 5 1/4-INCH DEVICE INSTALLATION
To install a 5 1/4-inch device into the minitower system, the top cover and 5 1/4-inch blank panel must first be removed. “Desktop 5 1/4-inch Device Installation” instructions were provided earlier in this section. When device option kits come with rails preattached, re­move the drive rails and reuse the screws to secure the drives to the drive bracket.
Page 88
NOTE: Do not remove the 5 1/4-inch blank panel when installing a hard disk drive.
The 3 1/2-inch hard disk drives must be mounted in a 5 1/4-inch bracket.
Minitower Blank Panel Removal
Remove the front panel assembly from the desktop chassis as follows.
1. Remove the minitower cover as previously described.
2. From the inside of the front panel, release the blank panel tabs and remove the
blank panel from the front panel (see Figure Section 3-29).
Options 3-31
Front Panel (inside view)
1 of 2 Tabs
Blank Panels
Figure Section 3-29 Minitower Blank Panel Removal
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3-32 Options
3. Remove the metal slot cover from the device cage by pushing the slot cover out
from the inside of the cage (see Figure Section 3-31).
Slot Covers
Figure Section 3-31 Device Cage Slot Cover
Page 90
Minitower 5 1/4-Inch Device Placement
Install the device into the 5 1/4-inch device slot as follows.
1. Remove the top cover, front panel as previously described.
NOTE: When installing 3 1/2-inch hard disk drives, a 5 1/4-inch hard disk bracket must first be attached to the 3 1/2-inch hard disk drives.
2. Slide the rear of the device into the 5 1/4-inch slot. (Be sure that the load/release
button on the diskette drive is on the right when sliding the drive into the device cage.)
Align the holes on the 5 1/4-inch device with the holes in the device cage.
3. Install the four device screws that were removed with the rails or that come with
the kit, two on each side of the drive cage (see Figure Section 3-33).
Options 3-33
2 of 4 Device Screws
Figure Section 3-33 Minitower 5 1/4-Inch Device Screws
Continue to minitower 5 1/4-inch device cabling.
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3-34 Options
Minitower 5 1/4-Inch Diskette Drive Cabling
Cable an optional 5 1/4-inch diskette drive as follows.
1. Locate the diskette drive signal cable (connected to the 3 1/2-inch diskette drive)
and plug middle connector into the 5 1/4-inch diskette drive signal connector (see Figure Section 3-35).
NOTE: When cabling the 5 1/4-inch device, note that all power cables are keyed to fit only in the correct position. The red edge of the diskette drive signal cable is positioned as shown.
2. Locate the power connector coming from the power supply and plug correct fit-
ting power cable into the device power connector (see Figure Section 3-35).
1.2-MB Diskette Drive Connector
Red Edge
Power Cable
Diskette Drive Signal Cable
Figure Section 3-35 Minitower 5 1/4-Inch Diskette Drive Cables
Page 92
Minitower 5 1/4-Inch Hard Disk Drive Cabling
Cable
Cable the hard disk drive per Figure 3-18 and the following steps.
1. Locate the IDE hard disk signal cable (connected to the 3 1/2-inch hard disk
drive) and plug the middle connector into the signal connector on the hard disk drive in the 5 1/4-inch slot (see Figure Section 3-37).
NOTE: When installing the drives, note that all power and hard disk signal cables are keyed to fit only in the correct position.
Either of the hard disk drive signal cable connectors may be used for the hard disk drives. The hard disk drives are configured by jumpers as master (drive C) and slave (drive D). The hard disk drive connectors are identified in Figure Section 3-
13.
Options 3-35
2. Locate one of the larger power connectors coming from the power supply and
plug it into the hard disk drive power connector (see Figure Section 3-37).
Power Cable
IDE
Figure Section 3-37 Minitower 5 1/4-Inch Hard Disk Drive Cables
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3-36 Options
Finishing Minitower 5 1/4-Inch Device Installation
Replace the assemblies removed earlier and reconfigure the system as follows.
1. Reinstall the 3 1/2-inch drive bracket by reversing the steps of the “3 1/2-inch
Drive Bracket Removal” procedure given earlier.
2. Replace the top cover and run Setup to reconfigure the computer for the hard
disk drive (see Section 2, Setup and Operation). If a fault occurs at power-on, verify that the reassembly was performed correctly.
3. Reconfigure the computer for the hard disk drive by selecting hard disk drive “In-
stalled” in Setup. Setup will automatically detect the hard disk type. When in­stalling a hard disk drive that cannot be detected, use the “Define Hard Disk Type” to determine the hard disk drive type.
Hard Disk Drive Troubleshooting
One beep indicates that the computer has completed its power-on self-test. If intermittent beeping occurs, turn off the computer and try again. If the beeping persists, see Section 4 “Maintenance and Troubleshooting.”
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Options 3-37
Table Section 3-12 summarizes problems that may develop after installing a hard disk drive and lists in sequential order suggested corrective actions.
Table Section 3-12 Optional 5 1/4-Inch Device Problems and Solutions
Problem Symptom Solution
No power Power lamp on computer
status panel will not light.
Operating system does not boot
Keyboard or mouse malfunction
Diskette drive does not work
An invalid configuration message is displayed.
Monitor has prompt, but cannot input data.
Lamp on drive panel does not light when diskette is loaded.
1. Check that the power cord is plugged into the AC connector on the computer. Check that the other end of the cord is plugged into a live properly grounded AC power outlet.
1. Press F2 to run setup and view parameters.
2. Check installation of the operating system on the hard disk.
3. Check to see if the system will boot from a diskette drive.
1. Check that the keyboard is plugged in.
2. Check that the mouse is plugged in.
1. Check power and signal cable connections between diskette drive, system board, and power supply.
2. Check that system configuration matches diskette drive signal connectors (end connector is A middle connector is B).
3. Check diskette drive jumpers or switches, and setup configuration.
4. Swap the diskette signal and power cables between drives.
5. Replace diskette drive.
6. Replace system board.
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3-38 Options
Table Section 3-12 Optional 5 1/4-Inch Device Problems and Solutions
Problem Symptom Solution
Hard disk malfunction
Hard disk controller failure
Cannot access hard disk.
Hard disk drive lamp does not light but hard disk drive can be accessed.
message displayed.
1. Check cable connections between the indicator panel and system board.
1. Check that the IDE port and hard disk drives are enabled.
1. Check signal and power connections between the hard disk, PCB, and power supply.
2. Check drive switch or jumper settings.
3. Verify the hard disk parameters selected are correct for the drive.
4. Check power supply and replace hard disk cable.
5. Replace hard disk.
6. Replace system board.
NEC SVGA MONITOR
This subsection explains how to connect an NEC SVGA Monitor and perform all adjust­ments, switch settings, and external controls. Because each system board has an integrated video controller, the monitor does not require a video controller board. Use the following guidelines to set up the monitor.
n Place the monitor in a dry, clean, dust-free location. n Allow adequate ventilation around the monitor so that heat generated can dissi-
pate properly.
n Place the monitor away from high-capacity transformers, electric motors, and
other strong magnetic fields.
To minimize eye fatigue:
n do not place the monitor against a bright background or where sunlight will shine
directly on it.
n position the monitor just below eye level.
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Options 3-39
Control panels for the NEC SVGA Monitor are on the front and rear. The monitor offers a maximum horizontal resolution of 1024 pixels by a maximum vertical resolution of 768 pix­els. The NEC SVGA Monitor provides system compatibility via the following features:
n provides automatic adjustment to vertical and horizontal frequencies including
VGA, SVGA, EVGA, and VESA VGA.
n displays an infinite number of colors (limited only by hardware and software ap-
plications).
n accepts analog signal inputs.
The following is a list of the items included with the NEC SVGA Monitor.
n NEC SVGA Monitor with tilt/swivel stand n Power cord n User's Manual
Connecting the Monitor
Connect the monitor to the computer as follows.
1. Turn off the computer.
2. Attach the monitor signal cable to the VGA monitor connector at the back of the
computer (see Figure Section 3-39). The connectors are keyed to fit only in the correct position. Secure the connection by tightening the two screws on either side of the signal cable.
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3-40 Options
3. Connect one end of the power cord to the monitor. Plug the other end into the
AC wall outlet.
NOTE: Figure Section 3-39 shows the monitor connection in the minitower orientation. If the system unit in the figure were in the desktop position, attach the monitor to the same connector.
Figure Section 3-39 Monitor Connections
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Options 3-41
Front Control Panel
The front control panel on the NEC SVGA Monitor is shown in Figure Section 3-41. Ex­planations of the individual controls follow the figure.
Power Indicator
Power Switch
Horizontal Width Control
Vertical Height Control Control
Brightness
Contrast
Control
Figure Section 3-41 NEC SVGA Monitor Front Control Panel
n Horizontal Width Control – This control sets the monitor screen to the desired
horizontal width. Move the control to the right to decrease the horizontal width, and left to increase the horizontal width.
n Vertical Height Control – This control sets the monitor screen to the desired ver-
tical height. To decrease the vertical length of the screen, move the control to the right; to increase it, move the control to the left.
n Brightness Control – Use this control to adjust the brightness of the screen image.
Move the control to the right to dim the screen and left to make the screen brighter. A brighter screen limits on-screen glare.
n Contrast Control – Use the contrast control to select how dark or light the moni-
tor's foreground should be, per individual preference. Move the control to the right to make the screen darker, to the left to make the screen lighter.
n Power Switch – This switch controls the power to the monitor. When on, the in-
dicator lights.
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3-42 Options
ControlControl
Hold 3
Control
Rear Control Panel
The rear control panel on the NEC SVGA Monitor is shown in Figure Section 3-43. Expla­nations of the individual controls follow the figure. The tilt/swivel feature allows proper po­sitioning of the monitor.
Vertical Center
Vertical Center
Figure Section 3-43 NEC SVGA Monitor Rear Control Panel
Horizontal Horizontal Phase
n Vertical Center (Vertical Position) Control – Turn this knob to adjust the on-
screen image vertical position. Turn the knob clockwise to raise the screen image, counterclockwise to lower the screen image.
n Horizontal Phase (Horizontal Position) Control – Turn this knob to adjust the on-
screen image horizontal position. Turn the knob clockwise to move the screen im­age position to the right, counterclockwise to move the screen image position to the left.
n Horizontal Hold 3 – If the screen flickers, use this control to steady the screen. n Tilt/Swivel Control – The tilt/swivel feature allows the user to tilt the screen up or
down, and move it from side to side, 45 degrees to the right or left. The user can reposition the monitor up to an angle of –5 degrees forward and +15 degrees backwards.
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Options 3-43
NEC SVGA Monitor Troubleshooting
Use Table Section 3-14 to help isolate and repair NEC SVGA monitor malfunctions. NEC Services and Information telephone numbers are listed in Section 4, Table 4-1.
NOTE: The monitor and cable together are considered a whole-unit, field-replaceable assem­bly. Therefore, disassembly of the monitor is not recommended.
Table Section 3-14 NEC SVGA Monitor Problems and Solutions
Problem Solution
Power Lamp not lit
No Picture 1. Check that the signal cable connector is completely seated in
Screen image is not centered, too small, or too large
Fuzzy screen image Bounce or a wave pattern on
screen Screen image is dark, but
power indicator is lit Screen moves constantly
1. Check that the power cable is connected to the monitor and to a live properly grounded AC outlet.
2. Check that the power switch is on.
the computer's VGA monitor connector.
2. If an ISA video controller board is used, check that the controller board is completely seated into the ISA slot connector. Review the instructions provided with the controller board.
3. The power switch for both the monitor and computer should be on.
4. Check the connector ends for bent or pushed-in pins.
1. Adjust size and position controls.
1. Adjust Contrast and Brightness controls.
1. Move electrical devices that may be causing electrical interference away from the monitor.
1. Adjust Brightness and Contrast controls.
1. Adjust Horizontal Phase control.
Screen image not centered
1. Adjust Vertical Centering control.
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